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 |
|---|---|---|---|---|---|
| 928-556 | QWEST CORPORATION | 9636 | FLAGSTAFF | AZ | |
| 928-563 | ONVOY, LLC - AZ | 630E | FLAGSTAFF | AZ | |
| 928-564 | CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL | 2172 | MEADVIEW | AZ | |
| 928-565 | CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL | 2172 | KINGMAN | AZ | |
| 928-566 | CSC VOICE, LLC | 612K | LKHAVASUCY | AZ | |
| 928-567 | QWEST CORPORATION | 9636 | SEDONA | AZ | |
| 928-569 | ONVOY, LLC - AZ | 630E | FLAGSTAFF | AZ | |
| 928-575 | CSC VOICE, LLC | 612K | PARKER | AZ | |
| 928-577 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | MOHAVE VLY | AZ | |
| 928-580 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | YUMA | AZ | |
| 928-581 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | YUMA | AZ | |
| 928-585 | ONVOY, LLC - AZ | 630E | WINSLOW | AZ | |
| 928-587 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | WINSLOW | AZ | |
| 928-588 | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7175 | WICKENBURG | AZ | |
| 928-589 | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7175 | WINSLOW | AZ | |
| 928-592 | QWEST CORPORATION | 9636 | SEDONA | AZ | |
| 928-593 | METROPCS, INC. | 5562 | SEDONA | AZ | |
| 928-595 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PAYSON | AZ | |
| 928-596 | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7175 | PAYSON | AZ | |
| 928-597 | ONVOY, LLC - AZ | 630E | YUMA | AZ | |
| 928-599 | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7175 | GRANDCNYON | AZ | |
| 928-600 | T-MOBILE USA, INC. | 6529 | FLAGSTAFF | AZ | |
| 928-606 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | FLAGSTAFF | AZ | |
| 928-607 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | FLAGSTAFF | AZ | |
| 928-608 | QWEST CORPORATION | 9636 | PAGE | AZ | |
| 928-611 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | AZ | |
| 928-612 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PAGE | AZ | |
| 928-613 | SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA | 4146 | WINSLOW | AZ | |
| 928-614 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PAGE | AZ | |
| 928-627 | QWEST CORPORATION | 9636 | SOMERTON | AZ | |
| 928-632 | QWEST CORPORATION | 9636 | PRESCOTT | AZ | |
| 928-633 | TABLE TOP TELEPHONE COMPANY | 3334 | BAGDAD | AZ | |
| 928-634 | QWEST CORPORATION | 9636 | SEDONA | AZ | |
| 928-635 | QWEST CORPORATION | 9636 | FLAGSTAFF | AZ | |
| 928-636 | QWEST CORPORATION | 9636 | PRESCOTT | AZ | |
| 928-637 | QWEST CORPORATION | 9636 | FLAGSTAFF | AZ | |
| 928-638 | QWEST CORPORATION | 9636 | GRANDCNYON | AZ | |
| 928-639 | QWEST CORPORATION | 9636 | SEDONA | AZ | |
| 928-640 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PAGE | AZ | |
| 928-641 | ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 7175 | SEDONA | AZ | |
| 928-643 | SOUTH CENTRAL UTAH TEL. ASSN., INC. | 2286 | FREDONIA | AZ | |
| 928-645 | QWEST CORPORATION | 9636 | PAGE | AZ | |
| 928-646 | QWEST CORPORATION | 9636 | SEDONA | AZ | |
| 928-649 | QWEST CORPORATION | 9636 | SEDONA | AZ | |
| 928-651 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SAFFORD | AZ | |
| 928-652 | NAVAJO COMM CO INC - AZ DBA FRONTIER NAVAJO COM | 4449 | WIDE RUINS | AZ | |
| 928-653 | NAVAJO COMM CO INC - AZ DBA FRONTIER NAVAJO COM | 4449 | RED VALLEY | AZ | |
| 928-654 | NAVAJO COMM CO INC - AZ DBA FRONTIER NAVAJO COM | 4449 | GREASEWOOD | AZ | |
| 928-656 | NAVAJO COMM CO INC - AZ DBA FRONTIER NAVAJO COM | 4449 | TEECNOSPOS | AZ | |
| 928-657 | NAVAJO COMM CO INC - AZ DBA FRONTIER NAVAJO COM | 4449 | DILKON | AZ |
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.