NumberResearchRecent prefix assignments
369 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/18/2026
Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.
Most active assignees, last 30 days
New assignments by month
Sep 2026
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Mar 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2001-05-15 | 520-509 | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | CASAGRANDE | AZ |
| 2001-05-15 | 520-619 | T-MOBILE USA, INC. | 6529 | NOGALES | AZ |
| 2001-05-15 | 520-732 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SIERRAVIST | AZ |
| 2001-05-15 | 571-241 | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | WSNGTNZN17 | VA |
| 2001-05-15 | 571-423 | VERIZON VIRGINIA, INC. | 9213 | WSNGTNZN17 | VA |
| 2001-05-15 | 607-348 | PAETEC ITEL, LLC | 829J | BINGHAMTON | NY |
| 2001-05-15 | 607-429 | PAETEC ITEL, LLC | 829J | ENDICOTT | NY |
| 2001-05-15 | 641-233 | T-MOBILE USA, INC. | 6529 | FAIRFIELD | IA |
| 2001-05-15 | 763-442 | AERIAL COMMUNICATIONS, INC. | 6701 | TWINCITIES | MN |
| 2001-05-15 | 843-551 | FTC DIVERSIFIED SERVICES, INC. | 4255 | HEMINGWAY | SC |
| 2001-05-15 | 843-630 | TWC IP ENABLED SERVICES, LLC | 793K | ANDREWS | SC |
| 2001-05-15 | 937-203 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | DAYTON | OH |
| 2001-05-14 | 205-362 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PELL CITY | AL |
| 2001-05-14 | 254-233 | SOUTHWESTERN BELL | 9533 | STRAWN | TX |
| 2001-05-14 | 254-477 | SOUTHWESTERN BELL | 9533 | BRECKENRDG | TX |
| 2001-05-14 | 313-727 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DETROITZN5 | MI |
| 2001-05-14 | 321-593 | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | TITUSVILLE | FL |
| 2001-05-14 | 325-715 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | TOW | TX |
| 2001-05-14 | 361-258 | SOUTHWESTERN BELL | 9533 | HALLETTSVL | TX |
| 2001-05-14 | 361-487 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | PORTLAVACA | TX |
| 2001-05-14 | 417-579 | BRIGHTSPEED OF MISSOURI, LLC | 9787 | GALENA | MO |
| 2001-05-14 | 417-657 | EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO | 1811 | LEBANON | MO |
| 2001-05-14 | 417-671 | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | CASSVILLE | MO |
| 2001-05-14 | 417-677 | RYSTEC, INC | 142C | FORSYTH | MO |
| 2001-05-14 | 417-712 | UNITED STATES CELLULAR - MO | 6275 | GAINESVL | MO |
| 2001-05-14 | 417-747 | BRIGHTSPEED OF MISSOURI, LLC | 9787 | BLUE EYE | MO |
| 2001-05-14 | 417-791 | BRIGHTSPEED OF MISSOURI, LLC | 9787 | BRANSON | MO |
| 2001-05-14 | 417-892 | BRIGHTSPEED OF MISSOURI, LLC | 9784 | CRANE | MO |
| 2001-05-14 | 505-306 | T-MOBILE USA, INC. | 6529 | ALBUQURQUE | NM |
| 2001-05-14 | 505-307 | METROPCS, INC. | 5562 | ALBUQURQUE | NM |
| 2001-05-14 | 505-409 | T-MOBILE USA, INC. | 6529 | GALLUP | NM |
| 2001-05-14 | 515-257 | TELEPORT COMMUNICATIONS AMERICA, LLC - IA | 8344 | DES MOINES | IA |
| 2001-05-14 | 562-572 | T-MOBILE USA, INC. | 6529 | LONG BEACH | CA |
| 2001-05-14 | 575-313 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM | 6573 | SILVERCITY | NM |
| 2001-05-14 | 682-459 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | CLEBURNE | TX |
| 2001-05-14 | 720-333 | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2001-05-14 | 720-334 | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2001-05-14 | 720-335 | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2001-05-14 | 734-620 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WAYNE | MI |
| 2001-05-14 | 734-834 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ANN ARBOR | MI |
| 2001-05-14 | 757-737 | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | NRFOLKZON2 | VA |
| 2001-05-14 | 760-900 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VICTORVL | CA |
| 2001-05-14 | 763-360 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TWINCITIES | MN |
| 2001-05-14 | 801-637 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SALT LAKE | UT |
| 2001-05-14 | 801-638 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SALT LAKE | UT |
| 2001-05-14 | 816-956 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | ODESSA | MO |
| 2001-05-14 | 830-326 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | DILLEY | TX |
| 2001-05-14 | 830-519 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | GONZALES | TX |
| 2001-05-14 | 830-572 | FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 2154 | GILLETT | TX |
| 2001-05-14 | 830-697 | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | MEDINALAKE | TX |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.