The ATF has stringent rules about what the numbers and letter in an FFL number represent. This guide will help you verify that you have a valid FFL.
An FFL Number MUST be 15 digits long, not counting the dashes.
— Example FFL Number: 4-65-934-01-3M-01768
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1st set must be a 1 digit number (Part of the RDS Key). This number represents one of the 7 regions of the country where the FFL is located. 2 & 7 are not used.
1. Southeast
3. Midwest
4. Central
5. Southwest
6. North Atlantic
8.Mid Atlantic
9. Western
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2nd set must be a 2 digit number (Part of the RDS Key). You can use this number to verify the state of the FFL. Some states have more than one code.
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01 – ME
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02 – NH
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03 – VT
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04 – MA
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05 – RI
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06 – CT
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11 – NY
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13 – NY
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14 – NY
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16 – NY
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22 – NJ
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23 – PA
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25 – PA
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31 – OH
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33 – CA
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34 – OH
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35 – IN
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36 – IL
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37 – IL
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38 – MI
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39 – WI
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41 – MN
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42 – IA
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43 – MO
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45 – ND
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46 – SD
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47 – NE
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48 – KS
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51 – DE
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52 – MD
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54 – DC or VA
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55 – WV
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56 – NC
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57 – SC
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58 – GA
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59 – FL
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61 – KY
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62 – TN
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63 – AL
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64 – MS
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66 – PR or VI (Puerto Rico or U.S. Virgin Islands)
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68 – CA
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71 – AR
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72 – LA
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73 – OK
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74 – TX
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75 – TX
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76 – TX
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77 – CA
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81 – MT
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82 – ID
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83 – WY
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84 – CO
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85 – NM
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86 – AZ
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87 – UT
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88 – NV
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91 – WA
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92 – AK
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93 – OR
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94 – CA
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95 – CA
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98 – GU (Guam)
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99 – HI
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3rd set must be a 3 digit number (Geographical Location). This number represents the Federal Information Processing Standards (FIPS) code where the FFL is located.
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4th set must be a 2 digit number. This number represents the FFL Type.
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5th set must be a single number 0 through 9 and a single letter A through M except I (FFL Expiration Date)
The number refers to the last number of the year of expiration. (For example, 1 could mean 2011 or 2021)
The letter refers to the month of expiration. The letters go A through M, skipping “I.”
A – January
B – February
C – March
D – April
E – May
F – June
G – July
H – August
J – September
K – October
L – November
M – December
(Example: An FFL with an expiration of 3M means the license expires on 12/1/23.)
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6th set must be a 5 digit number (Part of the RDS Key). This number is the unique code for each FFL.
