NumberResearchRecent prefix assignments
355 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
Aug 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 740-586 | OHIO BELL TEL CO | 9321 | ZANESVILLE | OH | |
| 740-587 | WINDSTREAM OHIO, LLC | 0665 | GRANVILLE | OH | |
| 740-588 | OHIO BELL TEL CO | 9321 | ZANESVILLE | OH | |
| 740-589 | FRONTIER NORTH, INC. - OH | 0615 | ATHENS | OH | |
| 740-591 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ATHENS | OH | |
| 740-592 | FRONTIER NORTH, INC. - OH | 0615 | ATHENS | OH | |
| 740-593 | FRONTIER NORTH, INC. - OH | 0615 | ATHENS | OH | |
| 740-594 | FRONTIER NORTH, INC. - OH | 0615 | ATHENS | OH | |
| 740-595 | FRONTIER NORTH, INC. - OH | 0615 | RADNOR | OH | |
| 740-596 | FRONTIER NORTH, INC. - OH | 0615 | MCARTHUR | OH | |
| 740-597 | FRONTIER NORTH, INC. - OH | 0615 | ATHENS | OH | |
| 740-598 | FRONTIER NORTH, INC. - OH | 0615 | BRILLIANT | OH | |
| 740-599 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | DANVL | OH | |
| 740-600 | AERIAL COMMUNICATIONS, INC. | 6701 | CHILLICOTH | OH | |
| 740-601 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CIRCLEVL | OH | |
| 740-602 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DELAWARE | OH | |
| 740-603 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LOGAN | OH | |
| 740-604 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LONDON | OH | |
| 740-605 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | NEWLXINGTN | OH | |
| 740-606 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WSNGTNCTHS | OH | |
| 740-607 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ZANESVILLE | OH | |
| 740-609 | AT&T ENTERPRISES, LLC | 516C | MARTISFRRY | OH | |
| 740-611 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | OH | |
| 740-621 | AERIAL COMMUNICATIONS, INC. | 6701 | NEWLXINGTN | OH | |
| 740-622 | OHIO BELL TEL CO | 9321 | COSHOCTON | OH | |
| 740-623 | OHIO BELL TEL CO | 9321 | COSHOCTON | OH | |
| 740-625 | BRIGHTSPEED OF NORTHWEST OHIO, INC. | 0661 | CENTERBURG | OH | |
| 740-626 | CHILLICOTHE TEL. CO. | 0597 | BOURNEVL | OH | |
| 740-627 | METROPCS, INC. | 5562 | MT VERNON | OH | |
| 740-632 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | STEUBENVL | OH | |
| 740-633 | OHIO BELL TEL CO | 9321 | MARTISFRRY | OH | |
| 740-634 | CHILLICOTHE TEL. CO. | 0597 | BAINBDG | OH | |
| 740-635 | OHIO BELL TEL CO | 9321 | MARTISFRRY | OH | |
| 740-636 | OHIO BELL TEL CO | 9321 | WSNGTNCTHS | OH | |
| 740-638 | WINDSTREAM WESTERN RESERVE, INC. | 0666 | CUMBERLAND | OH | |
| 740-639 | PAETEC ITEL, LLC | 829J | CARROLL | OH | |
| 740-642 | CHILLICOTHE TEL. CO. | 0597 | KINGSTON | OH | |
| 740-643 | OHIO BELL TEL CO | 9321 | ARABIA | OH | |
| 740-649 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHILLICOTH | OH | |
| 740-650 | PEERLESS NETWORK OF OHIO, LLC - OH | 284F | STCLAIRSVL | OH | |
| 740-652 | OHIO BELL TEL CO | 9321 | LANCASTER | OH | |
| 740-653 | OHIO BELL TEL CO | 9321 | LANCASTER | OH | |
| 740-654 | OHIO BELL TEL CO | 9321 | LANCASTER | OH | |
| 740-655 | CHILLICOTHE TEL. CO. | 0597 | HALLSVILLE | OH | |
| 740-656 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | CHILLICOTH | OH | |
| 740-657 | FRONTIER NORTH, INC. - OH | 0615 | CHESHIRCTR | OH | |
| 740-658 | FRONTIER NORTH, INC. - OH | 0615 | FREEPORT | OH | |
| 740-659 | OHIO BELL TEL CO | 9321 | GLENFORD | OH | |
| 740-662 | FRONTIER NORTH, INC. - OH | 0615 | GUYSVILLE | OH | |
| 740-663 | CHILLICOTHE TEL. CO. | 0597 | MASSIEVL | 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.