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
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 937-365 | OHIO BELL TEL CO | 9321 | RAINSBORO | OH | |
| 937-367 | T-MOBILE USA, INC. | 6529 | DAYTON | OH | |
| 937-368 | OHIO BELL TEL CO | 9321 | FLTCHELENA | OH | |
| 937-369 | T-MOBILE USA, INC. | 6529 | DAYTON | OH | |
| 937-370 | SPOK, INC. | 6630 | ENON | OH | |
| 937-371 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | DAYTON | OH | |
| 937-372 | OHIO BELL TEL CO | 9321 | XENIA | OH | |
| 937-373 | FRONTIER NORTH, INC. - OH | 0615 | DECATUR | OH | |
| 937-374 | OHIO BELL TEL CO | 9321 | XENIA | OH | |
| 937-375 | FRONTIER NORTH, INC. - OH | 0615 | HIGGINSPT | OH | |
| 937-376 | OHIO BELL TEL CO | 9321 | XENIA | OH | |
| 937-377 | FRONTIER NORTH, INC. - OH | 0615 | RUSSELLVL | OH | |
| 937-378 | FRONTIER NORTH, INC. - OH | 0615 | GEORGETOWN | OH | |
| 937-379 | FRONTIER NORTH, INC. - OH | 0615 | HAMERSVL | OH | |
| 937-381 | PAETEC ITEL, LLC | 829J | PIQUA | OH | |
| 937-382 | FRONTIER NORTH, INC. - OH | 0615 | WILMINGTON | OH | |
| 937-383 | FRONTIER NORTH, INC. - OH | 0615 | WILMINGTON | OH | |
| 937-384 | OHIO BELL TEL CO | 9321 | MSBGWCRLTN | OH | |
| 937-386 | FRONTIER NORTH, INC. - OH | 0615 | SEAMAN | OH | |
| 937-387 | PAETEC ITEL, LLC | 829J | VANDALIA | OH | |
| 937-388 | PAETEC ITEL, LLC | 829J | MSBGWCRLTN | OH | |
| 937-389 | T-MOBILE USA, INC. | 6529 | DAYTON | OH | |
| 937-390 | OHIO BELL TEL CO | 9321 | SPRINGFLD | OH | |
| 937-391 | SPOK, INC. | 6630 | ENON | OH | |
| 937-392 | OHIO BELL TEL CO | 9321 | RIPLEY | OH | |
| 937-393 | OHIO BELL TEL CO | 9321 | HILLSBORO | OH | |
| 937-394 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | ANNA | OH | |
| 937-395 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-396 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-398 | PAETEC ITEL, LLC | 829J | SPRINGFLD | OH | |
| 937-399 | OHIO BELL TEL CO | 9321 | SPRINGFLD | OH | |
| 937-406 | AMERICAN MESSAGING SERVICES, LLC | 9748 | DAYTON | OH | |
| 937-407 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | BELLEFNTAN | OH | |
| 937-408 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | SPRINGFLD | OH | |
| 937-409 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DAYTON | OH | |
| 937-410 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | VANDALIA | OH | |
| 937-411 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | OH | |
| 937-413 | AMERICAN MESSAGING SERVICES, LLC | 9748 | DAYTON | OH | |
| 937-415 | OHIO BELL TEL CO | 9321 | VANDALIA | OH | |
| 937-416 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | DAYTON | OH | |
| 937-417 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | GREENVILLE | OH | |
| 937-418 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | PIQUA | OH | |
| 937-422 | T-MOBILE USA, INC. | 6529 | DAYTON | OH | |
| 937-423 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GREENVILLE | OH | |
| 937-424 | PAETEC ITEL, LLC | 829J | DAYTON | OH | |
| 937-425 | LEVEL 3 TELECOM OF OHIO, LLC - OH | 7460 | DAYTON | OH | |
| 937-426 | OHIO BELL TEL CO | 9321 | BEAVERCREK | OH | |
| 937-427 | OHIO BELL TEL CO | 9321 | BEAVERCREK | OH | |
| 937-428 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-429 | OHIO BELL TEL CO | 9321 | BEAVERCREK | 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.