If you fly a drone in the United States that weighs more than 0.55 pounds, the FAA expects it to broadcast Remote ID every time it leaves the ground. That rule has been enforced since March 16, 2024, but the registration piece still trips up a huge number of pilots, including seasoned Part 107 certificate holders. The reason is rarely the rule itself, it is the workflow inside FAADroneZone, the cryptic 20-character serial number requirement, and the surprising number of drones that simply do not fit the expected format.
This guide walks through exactly how to add a Remote ID serial number to your FAA registration from start to finish. I cover both the recreational flyer path and the Part 107 commercial pilot path because the steps differ in important ways. I also dig into the troubleshooting problems that show up over and over in places like MavicPilots, the r/drones subreddit, and the Phantom Pilots forum, including the infamous “Invalid Serial Number” message that blocks far too many registration attempts.
By the end of this article you will know how to find the correct Remote ID serial number on your specific drone, how to add it through the DroneZone dashboard, what to do when the website refuses to accept it, and how to confirm your drone is actually broadcasting before your next flight. Whether you are flying a brand new DJI Mavic 3 Pro or an older Mavic 2 Pro that received a Remote ID firmware update, the steps below cover the path forward for 2026.
Table of Contents
Quick Answer: How to Add a Remote ID Serial Number to Your FAA Registration
To add a Remote ID serial number to your FAA registration, log in to FAADroneZone at faadronezone.faa.gov, open the Drone Owners and Pilots Dashboard, navigate to Manage Device Inventory, and either click Add Device for a new drone or click Edit next to an existing one. Answer “Yes” to the Remote ID question, select your device type (Standard Remote ID drone or Remote ID broadcast module), enter the Remote ID serial number exactly as it appears on your drone or in the manufacturer app, and save. For most newer DJI drones with a 20-digit serial number beginning with 1581F, the Remote ID serial number is the same as the drone serial number. For older 14-digit DJI drones, prefix with 1581F and add a 0 at the end.
What Is Remote ID and Why It Matters
Remote ID is the FAA’s digital license plate system for drones. It requires aircraft to broadcast identification and location data, including a serial number, latitude, longitude, altitude, velocity, takeoff point, and time stamp, while in flight. Anyone with a smartphone or compatible receiver within range can pick up that broadcast. The rule is enforced under 14 CFR Part 89 and applies to all drones weighing more than 250 grams (0.55 pounds) flown in the National Airspace System.
The compliance deadline was March 16, 2024. Since that date, flying a non-compliant drone in U.S. airspace is a violation that can carry civil penalties, including fines and, for certificated pilots, action against the remote pilot certificate. Many pilots discovered the rule only when local law enforcement or FAA inspectors began asking about Remote ID at popular flying spots. The broadcast requirement is not optional and there is no general extension available.
There is also a safety rationale that goes beyond enforcement. Remote ID gives the FAA, law enforcement, and federal security agencies a way to identify an aircraft that is flying in a restricted area, too close to an airport, or in a way that endangers people on the ground. Whether you agree with the rule or not, the practical reality is that registration must include a valid Remote ID serial number to be considered complete.
Remote ID Compliance Methods
The FAA recognizes three ways to satisfy the Remote ID rule, and the option you choose affects what serial number you enter during registration. Knowing which one applies to your drone is the first real decision in the registration process.
Standard Remote ID drone: The drone broadcasts Remote ID directly from its firmware through Wi-Fi or Bluetooth. Most DJI drones manufactured from 2021 onward, including the Mini 3 series, Mavic 3 series, Air 3, Avata, and Matrice 30, fall in this category after a firmware update. The serial number you register is the drone serial number itself.
Remote ID broadcast module: An external device attaches to a drone that is not Remote ID compliant and broadcasts the required information on its behalf. Modules such as the BlueMark db100, DroneBeacon db120, and Dronetag Mini have their own serial numbers. When you register, you enter the module serial number, not the drone serial number, and you can use the same module across multiple aircraft.
FAA-Recognized Identification Area (FRIA): An FAA-approved geographic area where drones can fly without broadcasting Remote ID. This is an organizational option tied to a flying club, educational institution, or model aircraft organization, not a drone-specific registration path. If you only fly within a FRIA, you do not enter a Remote ID serial number for that aircraft.
Prerequisites Before You Start
Before opening FAADroneZone, gather a few things so you are not stuck halfway through the form. The website times out, and re-entering a 20-character serial number after a session expires is a quick way to make a typo.
First, confirm your drone is actually Remote ID compliant. Visit the FAA UAS Declaration of Compliance list at uasdoc.faa.gov and search for your drone model. If it is not listed, or if you have not installed the firmware update that enables Remote ID, registration will not make your drone legal to fly. Update the firmware through the manufacturer app first and then complete a short test flight so the broadcast activates.
Second, locate your Remote ID serial number before logging in. I cover exactly how to find it in the next section because the format matters more than most pilots expect. Write it down or keep the manufacturer app open in another tab.
Third, have your FAADroneZone login ready. If you have not logged in for a while, the password reset flow can take several minutes and the dashboard sometimes throws errors after a reset. If you have never registered a drone, you will need to create an account first at the same login page.
Fourth, know which registration path applies to you. If you fly strictly under the Exception for Limited Recreational Operations of Unmanned Aircraft, you follow the recreational flyer path and pay $5 every three years for your entire inventory. If you hold a Part 107 Remote Pilot Certificate and fly commercially, you follow the Part 107 path and pay $5 per drone. The DroneZone dashboard looks different for each path, which is a common source of confusion.
How to Find Your Remote ID Serial Number
This is the single most common point of confusion in the entire process, and it is where most “Invalid Serial Number” errors originate. The Remote ID serial number is not always the same as the serial number printed on the bottom of your drone or on the box. It depends on the manufacturer, the model year, and the format your drone uses.
The good news is that for the overwhelming majority of modern drones, the Remote ID serial number and the regular drone serial number are identical. The bad news is that the DroneZone input field expects exactly 20 alphanumeric characters, and many drones have serial numbers that do not fit that pattern without modification.
20-Digit Serial Numbers (1581F Prefix)
If your drone has a 20-character alphanumeric serial number that begins with 1581F, the Remote ID serial number is the same as the drone serial number. This is true for almost every DJI drone manufactured from late 2021 onward, including the Mavic 3 series, Mini 3 series, Mini 4 series, Air 3, Air 3S, Avata 2, Mavic 3 Enterprise, and Matrice 30 series.
For these aircraft, you can find the serial number in three places: printed on a label inside the battery compartment or on the gimbal mount, displayed in the DJI Fly app under About This Aircraft, or shown in the broadcast itself when you scan for it with a Wi-Fi analyzer. The simplest way is to open the DJI Fly app, tap the three dots in the upper right, and look at the Aircraft Serial Number field. Copy that exactly.
The 1581F prefix is not random. It is the manufacturer code the FAA assigned to DJI under the Declaration of Compliance system. If your serial number starts with those five characters and runs a total of 20 digits, you are in the easy path. Paste it directly into DroneZone.
14-Digit Serial Numbers (Older DJI Drones)
Older DJI drones, including the Mavic 2 Pro, Mavic 2 Zoom, Mavic Air 2, Mavic Air 2S, original Mavic Mini, and some Phantom 4 variants, use a 14-character serial number. The DJI firmware update enabled Remote ID broadcasting on these models, but the serial number format does not match what DroneZone expects. Many pilots hit a wall here and assume their drone cannot be registered.
The workaround, widely shared on MavicPilots and confirmed by users across the drone communities, is to construct the 20-character Remote ID serial number yourself. Take the 1581F manufacturer prefix, add your 14-character drone serial number directly after it, then add a single 0 at the end to reach 20 characters total. The result is 5 + 14 + 1 = 20 characters, exactly what DroneZone requires.
For example, if your Mavic 2 Pro serial number is 1FAKE12345678 (14 characters), your Remote ID serial number for registration becomes 1581F1FAKE123456780 (20 characters). You use that constructed number only in the DroneZone registration field, not anywhere else. The drone itself still broadcasts the underlying serial number, and the FAA system uses the 1581F prefix and trailing 0 to associate the two.
One important note: DroneZone may display the “Invalid Serial Number” error as you type, before you finish entering all 20 characters. This is a known quirk and it does not necessarily mean the final number is wrong. Type the full number and then attempt to save. If it still rejects after the full 20 characters are entered, double-check the prefix and suffix.
Remote ID Serial vs Flight Controller Serial Number
Some DJI documentation references a “flight controller serial number” alongside the Remote ID serial number, which creates additional confusion. The two numbers are usually but not always the same. For 20-digit DJI drones with the 1581F prefix, the Remote ID serial, drone serial, and flight controller serial are typically identical. For 14-digit DJI drones, the flight controller serial may differ from the printed drone serial, and only the drone serial with the 1581F construction is what DroneZone expects.
If you are unsure which serial your drone is actually broadcasting, the only reliable way to confirm is to scan the broadcast itself. Use a Wi-Fi scanning app on your phone, look for a network name beginning with RID-, and inspect the broadcast payload. The serial number in that payload is the one the FAA expects to see in your registration. If it does not match what you entered, the registration is technically invalid even if DroneZone accepted it.
How to Add a Remote ID Serial Number to Your FAA Registration (Recreational Flyers)
If you fly only under the recreational exception, your registration covers your entire drone inventory for $5 every three years. Adding or updating Remote ID serial numbers happens through the Recreational Flyer dashboard inside FAADroneZone. The process is straightforward once you know where each button lives.
Step 1: Open faadronezone.faa.gov in your browser and click Login under the “Drone Owners and Pilots” section. Enter the email and password you used when you originally registered. If you forgot your password, use the Reset Password link and wait for the email before continuing.
Step 2: From the dashboard home, click the button labeled Manage Device Inventory. This opens the list of every drone currently tied to your recreational registration.
Step 3: If you are adding a new drone, click Add Device at the top of the inventory list. If you are adding Remote ID to a drone that is already in your inventory but missing the serial number, click Edit next to that entry instead.
Step 4: The form asks whether the device is a Standard Remote ID drone, a Remote ID broadcast module, or an aircraft without Remote ID. Select the option that matches your setup. If your drone broadcasts Remote ID through its own firmware, choose Standard Remote ID drone. If you are using an external module, choose Remote ID broadcast module.
Step 5: Enter the manufacturer, model, and the 20-character Remote ID serial number. Double-check every character against the source you found in the previous section. For DJI drones, the 1581F prefix is case-sensitive in some DroneZone versions, so use uppercase letters.
Step 6: Click Save or Submit at the bottom of the form. DroneZone will display a confirmation if the serial number was accepted. If you see “Invalid Serial Number,” jump down to the troubleshooting section before trying again.
Step 7: Verify the saved record shows Remote ID: YES next to the drone entry in your inventory list. If it still shows NO, the save did not complete. Log out, log back in, and edit the entry again.
Recreational flyers do not need to repeat this step for every drone if they all share the same Remote ID serial number, which is rare. Each drone in your inventory needs its own serial number entry. If you use one broadcast module across multiple drones, you only enter the module serial number once for the module record, and each drone record can reference it.
How to Add a Remote ID Serial Number to Your FAA Registration (Part 107 Pilots)
Part 107 certificate holders follow a slightly different path because each drone is registered individually with its own $5 fee and its own N-number. The dashboard is called the Part 107 dashboard, and the workflow splits into two scenarios: editing an existing registration that lacks Remote ID, and registering a brand new aircraft with Remote ID from the start.
Editing an Existing Registration
If you already registered your drone under Part 107 before Remote ID became mandatory, the registration record likely exists but is missing the Remote ID serial number. You do not need to delete and re-register in most cases, although there is a specific bug that sometimes forces the delete path, which I cover in troubleshooting.
Step 1: Log in at faadronezone.faa.gov and click Launch Drone Owners and Pilots Dashboard under the Part 107 section.
Step 2: From the dashboard, click Manage Device Inventory. You will see every aircraft registered under your Part 107 certificate, each with its N-number displayed.
Step 3: Locate the aircraft you want to update and click the Edit button next to its entry. A form opens with the aircraft details, including a field for Remote ID information.
Step 4: Answer “Yes” to the question asking whether this aircraft has Remote ID. A drop-down menu appears asking you to choose between Standard Remote ID drone and Remote ID broadcast module. Pick the one that applies.
Step 5: Enter the 20-character Remote ID serial number. For DJI drones with 1581F prefix serials, paste the drone serial directly. For 14-digit older DJI drones, use the constructed number described in the previous section.
Step 6: Click Save. DroneZone confirms the update and the inventory list should now show Remote ID: YES next to the aircraft. Your N-number does not change, and there is no additional fee for editing an existing registration to add Remote ID.
Registering a New Device with Remote ID
If you are registering a brand new drone under Part 107, the Remote ID piece is built into the initial registration form rather than added later. This is the easier path because the website prompts you for the serial number during the normal flow.
Step 1: Log in to FAADroneZone and open the Part 107 dashboard.
Step 2: Click Register a New Device and proceed through the initial aircraft information fields including manufacturer, model, and serial number.
Step 3: When prompted, answer “Yes” to the Remote ID question. Select Standard Remote ID drone or Remote ID broadcast module from the drop-down menu.
Step 4: Enter the Remote ID serial number. For most modern DJI drones, this is the same 1581F-prefixed serial you entered for the aircraft serial number above.
Step 5: Pay the $5 registration fee via the pay.gov redirect. You will receive a confirmation email with your new N-number.
Step 6: Print or save the registration certificate. The certificate includes your N-number, which must be displayed on the exterior of your drone, typically inside the battery compartment or on the arm. The Remote ID serial number does not need to be physically displayed because it is broadcast electronically.
Troubleshooting Common DroneZone Errors
The DroneZone website is functional but far from polished, and certain errors show up constantly across the major drone forums. Below are the most common issues pilots hit when adding a Remote ID serial number and the practical fixes that have actually worked for users.
DroneZone Says “Invalid Serial Number”
This is the most widely reported issue. The error appears in two flavors: a real rejection where the number genuinely does not match the expected format, and a premature rejection that fires while you are still typing. Both look identical in the UI.
First, count the characters. DroneZone expects exactly 20 alphanumeric characters. If your number is 19 or 21 characters, it will reject. For DJI FPV owners specifically, the 14-digit drone serial plus the 1581F prefix produces only 19 characters, which still falls one short of the 20-character requirement. The accepted workaround is to add a second 0 at the end, producing 1581F + 14 digits + 0 + 0 = 21 characters, which DroneZone may still reject, or to try a single 0 suffix and contact FAA support if it does not validate. Several FPV owners report that the FAA UAS Help Desk resolved the issue manually after an email.
Second, watch the case sensitivity. The 1581F prefix should be uppercase. The remainder of DJI serial numbers are also uppercase. Lowercase letters from a paste operation can trigger the error.
Third, ignore the error if it appears while you are still typing. Type the full 20 characters and then click Save. The premature warning is a JavaScript check that fires before you finish, and it does not necessarily reflect what happens when you submit.
Cannot Edit Existing Registration
A smaller but persistent group of pilots report that the Edit button on an existing registration either does not respond or throws a server error after they make changes. The website logs the user out, the save fails, and the Remote ID field remains blank.
The most reliable workaround, confirmed by MavicPilots user KB9Radio and others, is to delete the existing registration entry entirely and re-add the drone as a new device. The system then walks you through the new device flow, which includes the Remote ID prompt, and the serial number saves correctly. Your N-number may change in this case, which is the primary concern for pilots who already have it painted on their aircraft.
If you must preserve the N-number, contact the FAA UAS Support team through the help link in DroneZone before deleting. They can edit the record on the backend in some cases. Response times vary but most reports indicate a turnaround of a few business days.
DJI FPV 19-Character Serial Number Problem
The DJI FPV drone has a unique serial number length that does not match either the standard 20-digit format or the simple 14-digit format. Pilots report that adding the 1581F prefix to the 14-character FPV serial produces 19 characters total, which DroneZone rejects. Adding a single 0 to reach 20 sometimes works, sometimes does not. Adding two 0s to reach 21 never works.
The cleanest fix reported by Reddit users in the r/dji community is to email the FAA UAS Help Desk with your drone serial number, a screenshot of the broadcast from a Wi-Fi scanning app showing the actual Remote ID payload, and a brief explanation. The FAA can manually associate the serial number with your registration on their end. This is not fast, but it is the only reliable solution until DJI issues a firmware update that aligns the FPV serial format with the 20-character standard.
Recreational vs Part 107 Registration Differences
Understanding which path applies to you prevents most registration errors before they start. The two paths share the DroneZone platform but diverge on fees, coverage, and how the Remote ID serial number is attached to the record.
The recreational flyer path covers all drones you own under a single $5 registration that lasts three years. You can fly as many aircraft as you want under that registration as long as every drone in your inventory has its own Remote ID serial number entered. The Part 107 path requires a separate $5 registration for each individual aircraft, and each registration is tied to a specific N-number that must be displayed on that aircraft.
Hybrid flyers, those who fly the same drone both recreationally and commercially, must register under Part 107 for the commercial use. The recreational registration does not authorize commercial operations even if you hold a Part 107 certificate. Many pilots maintain both a recreational registration for personal flying and individual Part 107 registrations for paid work.
The Remote ID requirement itself is identical across both paths. The drone must broadcast, the serial number must be registered, and the format must be 20 characters. The dashboard you use is the only difference, and the data you enter is the same.
How to Verify Your Remote ID Is Broadcasting
Registration is only half the requirement. The drone must also actually broadcast Remote ID during flight, and the broadcast serial number must match what you registered. Several free methods let you confirm before you fly.
The simplest check is a Wi-Fi scan. Open the Wi-Fi settings on your smartphone or tablet with the drone powered on and the gimbal active. Look for a network name starting with RID- followed by alphanumeric characters. That network is your drone broadcasting Remote ID over Wi-Fi, which is the protocol DJI and most major manufacturers use. If you see the network, the broadcast is live.
For a more detailed check, use a free Remote ID scanner app. Apps like Drone Scanner for iOS and Android read the full broadcast payload, including the serial number, location, altitude, and timestamp. Compare the serial number shown in the app to the one you entered in DroneZone. If they match, your registration is correctly linked to the broadcast.
Some drones perform a pre-flight self-test that flags a Remote ID malfunction before takeoff. If your drone’s app warns that Remote ID is not broadcasting, do not fly. Update the firmware, restart the drone, and re-test. Flying with a known Remote ID malfunction is treated the same as flying without Remote ID at all.
Frequently Asked Questions
How do I register Remote ID with the FAA?
Remote ID is registered as part of your drone registration through FAADroneZone at faadronezone.faa.gov. When you register a new drone or edit an existing registration, answer Yes to the Remote ID question and enter the 20-character Remote ID serial number. There is no separate Remote ID-only registration.
Is the Remote ID serial number the same as the drone serial number?
For most modern DJI drones with a 20-digit serial number beginning with 1581F, the Remote ID serial number and the drone serial number are identical. For older DJI drones with a 14-digit serial number, the Remote ID serial number is constructed by adding the 1581F prefix and a 0 suffix to reach 20 characters.
How do I add a Remote ID to my existing drone registration?
Log in to FAADroneZone, open your dashboard, click Manage Device Inventory, click Edit next to your drone, answer Yes to the Remote ID question, choose your device type, enter the 20-character Remote ID serial number, and save. Your N-number and existing registration remain unchanged.
How do I get the Remote ID serial number for my drone?
For DJI drones, open the DJI Fly app, tap the three dots in the upper right, and look at the Aircraft Serial Number field. For 20-digit serials starting with 1581F, use that number directly. For 14-digit serials, prefix with 1581F and add a 0 at the end. You can also scan the broadcast using a Wi-Fi analyzer or Remote ID scanner app.
Can I keep my N-number when re-registering for Remote ID?
In most cases yes, you keep your existing N-number when editing an existing registration to add Remote ID. If the Edit function fails and you must delete and re-add the drone, the system may assign a new N-number. Contact the FAA UAS Support team before deleting if keeping your N-number is critical.
Why does DroneZone say my serial number is invalid?
The Invalid Serial Number error usually means the entry is not exactly 20 alphanumeric characters, the 1581F prefix is not uppercase, or you are seeing a premature warning that fires while you are still typing. Type the full 20 characters and click Save before assuming the rejection is final.
Do I need to re-register my drone to add Remote ID?
No, you do not need to re-register. Use the Edit function on your existing registration in FAADroneZone to add the Remote ID serial number. Re-registration is only required if the Edit function fails and you cannot resolve the issue with FAA support.
What happens if I fly without Remote ID?
Flying a drone that weighs more than 0.55 pounds without Remote ID broadcasting since March 16, 2024 violates 14 CFR Part 89 and can result in civil penalties including fines and, for certificated pilots, action against the remote pilot certificate. Law enforcement and FAA inspectors can request proof of Remote ID compliance during a flight.
Conclusion
Adding a Remote ID serial number to your FAA registration is a small step that has outsized importance for legal drone flight in the United States. The process lives entirely inside FAADroneZone, the data entry is straightforward once you have the correct serial number, and the cost is zero beyond your existing registration fee. The hard part is almost always locating and formatting the serial number, not the registration workflow itself.
If you take one lesson from this guide, it is that the 20-character serial number format matters more than anything else. Whether your drone has a native 1581F-prefixed serial or you need to construct one for an older aircraft, getting those 20 characters right is what separates a successful save from the endless “Invalid Serial Number” loop. The 1581F prefix plus a 0 suffix for 14-digit DJI drones is the most overlooked fix in the entire Remote ID ecosystem.
For most pilots, the entire process takes under fifteen minutes once the serial number is in hand. For pilots hitting the DJI FPV 19-character issue or the DroneZone edit bug, the path is slower but well documented above. The next step after registration is verification: power on your drone, run a Wi-Fi scan, confirm the RID- network appears, and compare the broadcast serial to your saved DroneZone record. Once those match, your registration is complete and your aircraft is compliant for 2026 and beyond.
Now that you know how to add a Remote ID serial number to your FAA registration, take five minutes today to confirm every drone in your inventory shows Remote ID: YES in the DroneZone dashboard. Fines for non-compliance are real, but they are also entirely avoidable with a few minutes of attention to the registration record.