NumberResearchRecent prefix assignments
371 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 937-430 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DAYTON | OH | |
| 937-431 | OHIO BELL TEL CO | 9321 | BEAVERCREK | OH | |
| 937-432 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-433 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-434 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-435 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-436 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-437 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | NEW PARIS | OH | |
| 937-438 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-439 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-440 | FRONTIER NORTH, INC. - OH | 0615 | TROY | OH | |
| 937-441 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | BELLEFNTAN | OH | |
| 937-442 | FRONTIER NORTH, INC. - OH | 0615 | MOWRYSTOWN | OH | |
| 937-443 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-444 | FRONTIER NORTH, INC. - OH | 0615 | MOUNT ORAB | OH | |
| 937-445 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-446 | FRONTIER NORTH, INC. - OH | 0615 | SARDINIA | OH | |
| 937-447 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | GETTYSBURG | OH | |
| 937-448 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | BRADFORD | OH | |
| 937-449 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-452 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | CAMDEN | OH | |
| 937-453 | OHIO BELL TEL CO | 9321 | BOWERSVLLE | OH | |
| 937-454 | OHIO BELL TEL CO | 9321 | VANDALIA | OH | |
| 937-455 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-456 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | EATON | OH | |
| 937-457 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-458 | PAETEC ITEL, LLC | 829J | BEAVERCREK | OH | |
| 937-459 | T-MOBILE USA, INC. | 6529 | GREENVILLE | OH | |
| 937-461 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-462 | OHIO BELL TEL CO | 9321 | SOCHARLETN | OH | |
| 937-463 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-464 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | BELLE CTR | OH | |
| 937-465 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | W LIBERTY | OH | |
| 937-466 | OHIO BELL TEL CO | 9321 | MARSHALL | OH | |
| 937-467 | T-MOBILE USA, INC. | 6529 | GREENVILLE | OH | |
| 937-468 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | RUSHSYLVAN | OH | |
| 937-469 | T-MOBILE USA, INC. | 6529 | DAYTON | OH | |
| 937-470 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | DAYTON | OH | |
| 937-471 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | SPRINGFLD | OH | |
| 937-472 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | EATON | OH | |
| 937-473 | WINDSTREAM OHIO, LLC | 0665 | COVINGTON | OH | |
| 937-474 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | DAYTON | OH | |
| 937-475 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | DAYTON | OH | |
| 937-476 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-477 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | DAYTON | OH | |
| 937-478 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | DAYTON | OH | |
| 937-479 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | DAYTON | OH | |
| 937-480 | SPOK, INC. | 6630 | DAYTON | OH | |
| 937-482 | PAETEC ITEL, LLC | 829J | FAIRBORN | OH | |
| 937-483 | T-MOBILE USA, INC. | 6529 | GEORGETOWN | OH |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.