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 |
|---|---|---|---|---|---|
| 937-312 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-313 | T-MOBILE USA, INC. | 6529 | DAYTON | OH | |
| 937-314 | PAETEC ITEL, LLC | 829J | DONNELSVL | OH | |
| 937-315 | PAETEC ITEL, LLC | 829J | MEDWAY | OH | |
| 937-316 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | GREENVILLE | OH | |
| 937-317 | PAETEC ITEL, LLC | 829J | SPRING VLY | OH | |
| 937-318 | OHIO BELL TEL CO | 9321 | FAIRBORN | OH | |
| 937-319 | PAETEC ITEL, LLC | 829J | YLSPGCLFTN | OH | |
| 937-320 | OHIO BELL TEL CO | 9321 | BEAVERCREK | OH | |
| 937-321 | T-MOBILE USA, INC. | 6529 | DAYTON | OH | |
| 937-322 | OHIO BELL TEL CO | 9321 | SPRINGFLD | OH | |
| 937-323 | OHIO BELL TEL CO | 9321 | SPRINGFLD | OH | |
| 937-324 | OHIO BELL TEL CO | 9321 | SPRINGFLD | OH | |
| 937-325 | OHIO BELL TEL CO | 9321 | SPRINGFLD | OH | |
| 937-327 | OHIO BELL TEL CO | 9321 | SPRINGFLD | OH | |
| 937-328 | OHIO BELL TEL CO | 9321 | SPRINGFLD | OH | |
| 937-329 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DAYTON | OH | |
| 937-330 | SPOK, INC. | 6630 | ENON | OH | |
| 937-331 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-332 | FRONTIER NORTH, INC. - OH | 0615 | TROY | OH | |
| 937-333 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-334 | SPOK, INC. | 6630 | DAYTON | OH | |
| 937-335 | FRONTIER NORTH, INC. - OH | 0615 | TROY | OH | |
| 937-336 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | EATON | OH | |
| 937-337 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | ANSONIA | OH | |
| 937-338 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | ROSSBURG | OH | |
| 937-339 | FRONTIER NORTH, INC. - OH | 0615 | TROY | OH | |
| 937-340 | PAETEC ITEL, LLC | 829J | ENON | OH | |
| 937-341 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-342 | OHIO BELL TEL CO | 9321 | SPRINGFLD | OH | |
| 937-343 | PAETEC ITEL, LLC | 829J | FAIRBORN | OH | |
| 937-344 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DAYTON | OH | |
| 937-346 | PAETEC ITEL, LLC | 829J | SPRINGFLD | OH | |
| 937-347 | PAETEC ITEL, LLC | 829J | XENIA | OH | |
| 937-348 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | MAGNETCSPG | OH | |
| 937-349 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | MILFORDCTR | OH | |
| 937-350 | PAETEC ITEL, LLC | 829J | CENTERVLLE | OH | |
| 937-352 | PAETEC ITEL, LLC | 829J | XENIA | OH | |
| 937-353 | PAETEC ITEL, LLC | 829J | MSBGWCRLTN | OH | |
| 937-354 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | MT VICTORY | OH | |
| 937-355 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | WMANSFIELD | OH | |
| 937-356 | OHIO BELL TEL CO | 9321 | DAYTON | OH | |
| 937-357 | AMERICAN MESSAGING SERVICES, LLC | 9748 | BEAVERCREK | OH | |
| 937-358 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | YORKCENTER | OH | |
| 937-359 | SPOK, INC. | 6630 | DAYTON | OH | |
| 937-360 | T-MOBILE USA, INC. | 6529 | SPRINGFLD | OH | |
| 937-361 | T-MOBILE USA, INC. | 6529 | DAYTON | OH | |
| 937-362 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | ROSEWOOD | OH | |
| 937-363 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | RIDGEWAY | OH | |
| 937-364 | FRONTIER NORTH, INC. - OH | 0615 | LYNCHBURG | 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.