NumberResearchRecent prefix assignments
352 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 2026-04
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 |
|---|---|---|---|---|---|
| 775-570 | FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - NV | 4421 | MONTGYPASS | NV | |
| 775-572 | NEVADA BELL | 9742 | FISHLK VLY | NV | |
| 775-573 | NEVADA BELL | 9742 | MINA | NV | |
| 775-574 | NEVADA BELL | 9742 | NIXON | NV | |
| 775-575 | NEVADA BELL | 9742 | FERNLEY | NV | |
| 775-576 | BANDWIDTH.COM CLEC, LLC - NV | 075F | SMITH VLY | NV | |
| 775-577 | NEVADA BELL | 9742 | SILVER SPG | NV | |
| 775-578 | HUMBOLDT TELEPHONE COMPANY | 3304 | PARADISVLY | NV | |
| 775-580 | CHARTER IP ENABLED SERVICES, LLC | 792K | STATELINE | NV | |
| 775-581 | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | TOPAZ LAKE | NV | |
| 775-582 | MATRIX TELECOM, LLC. S/I/I TNCI - NV | 2817 | PAHRUMP | NV | |
| 775-583 | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | VIRGINIACY | NV | |
| 775-586 | FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - NV | 4421 | STATELINE | NV | |
| 775-587 | ONVOY, LLC - NV | 029F | WINNEMUCCA | NV | |
| 775-588 | FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - NV | 4421 | STATELINE | NV | |
| 775-589 | FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - NV | 4421 | STATELINE | NV | |
| 775-591 | NEVADA BELL | 9742 | SPVLYCHCRK | NV | |
| 775-593 | ONVOY, LLC - NV | 029F | VIRGINIACY | NV | |
| 775-599 | ONVOY, LLC - NV | 029F | FISHLK VLY | NV | |
| 775-600 | ONVOY, LLC - NV | 029F | CARSONCITY | NV | |
| 775-611 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | NV | |
| 775-618 | ONVOY, LLC - NV | 029F | FERNLEY | NV | |
| 775-621 | MATRIX TELECOM, LLC. S/I/I TNCI - NV | 2817 | WINNEMUCCA | NV | |
| 775-623 | NEVADA BELL | 9742 | WINNEMUCCA | NV | |
| 775-624 | NEVADA BELL | 9742 | RENO | NV | |
| 775-625 | NEVADA BELL | 9742 | WINNEMUCCA | NV | |
| 775-626 | NEVADA BELL | 9742 | RENO | NV | |
| 775-627 | LEVEL 3 COMMUNICATIONS, LLC - NV | 4805 | YERINGTON | NV | |
| 775-628 | ONVOY, LLC - NV | 029F | FISHLK VLY | NV | |
| 775-629 | NEVADA BELL | 9742 | STAGECOACH | NV | |
| 775-635 | NEVADA BELL | 9742 | BATTLE MT | NV | |
| 775-637 | ONVOY, LLC - NV | 029F | GABBS | NV | |
| 775-640 | ONVOY, LLC - NV | 029F | EUREKA | NV | |
| 775-655 | ONVOY, LLC - NV | 029F | ROUND MT | NV | |
| 775-659 | ONVOY, LLC - NV | 029F | HAWTHORNE | NV | |
| 775-664 | CITIZENS TELECOMM CO OF NV DBA FRONTIER COMM OF NV | 2354 | WENDOVER | NV | |
| 775-665 | ONVOY, LLC - NV | 029F | SILVER SPG | NV | |
| 775-666 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV | 6458 | FALLON | NV | |
| 775-667 | ONVOY, LLC - NV | 029F | MCGILL | NV | |
| 775-673 | NEVADA BELL | 9742 | RENO | NV | |
| 775-674 | NEVADA BELL | 9742 | RENO | NV | |
| 775-677 | NEVADA BELL | 9742 | RENO | NV | |
| 775-684 | NEVADA BELL | 9742 | CARSONCITY | NV | |
| 775-685 | NEVADA BELL | 9742 | RENO | NV | |
| 775-686 | NEVADA BELL | 9742 | RENO | NV | |
| 775-687 | NEVADA BELL | 9742 | CARSONCITY | NV | |
| 775-688 | NEVADA BELL | 9742 | RENO | NV | |
| 775-689 | NEVADA BELL | 9742 | RENO | NV | |
| 775-690 | T-MOBILE USA, INC. | 6529 | CARSONCITY | NV | |
| 775-691 | T-MOBILE USA, INC. | 6529 | CARSONCITY | NV |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 2026-04 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.