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
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 928-855 | CITIZENS UTILITIES RURAL DBA FRONTIER UT RURAL | 2172 | LKHAVASUCY | AZ | |
| 928-856 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | FLAGSTAFF | AZ | |
| 928-857 | FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - AZ | 4419 | CIBOLA | AZ | |
| 928-858 | TABLE TOP TELEPHONE COMPANY | 3334 | INCRPTCNYN | AZ | |
| 928-859 | SOUTHWESTERN TEL. CO. | 2174 | SALOME | AZ | |
| 928-865 | VALLEY TEL COOP INC | 2176 | CLIFTON | AZ | |
| 928-871 | NAVAJO COMM CO INC - AZ DBA FRONTIER NAVAJO COM | 4449 | WINDOWROCK | AZ | |
| 928-875 | SOUTH CENTRAL UTAH TEL. ASSN., INC. | 2286 | COLORADOCY | AZ | |
| 928-888 | ONVOY, LLC - AZ | 630E | GRANDCNYON | AZ | |
| 928-890 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | FLAGSTAFF | AZ | |
| 928-892 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SHOW LOW | AZ | |
| 928-899 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PRESCOTT | AZ | |
| 928-910 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PRESCOTT | AZ | |
| 928-911 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | AZ | |
| 928-913 | QWEST CORPORATION | 9636 | FLAGSTAFF | AZ | |
| 928-916 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | QUARTZSITE | AZ | |
| 928-919 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | YUMA | AZ | |
| 928-920 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | YUMA | AZ | |
| 928-923 | FRONTIER COMMUNICATIONS OF THE SOUTHWEST INC. - AZ | 4419 | EHRENBERG | AZ | |
| 928-925 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PRESCOTT | AZ | |
| 928-927 | SOUTHWESTERN TEL. CO. | 2174 | QUARTZSITE | AZ | |
| 928-941 | T-MOBILE USA, INC. | 6529 | YUMA | AZ | |
| 928-950 | AZ | ||||
| 928-951 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PAYSON | AZ | |
| 928-958 | AZ | ||||
| 928-959 | AZ | ||||
| 928-961 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | GLOBE | AZ | |
| 928-962 | ONVOY, LLC - AZ | 630E | FLAGSTAFF | AZ | |
| 928-963 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | SEDONA | AZ | |
| 928-970 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PAYSON | AZ | |
| 928-976 | AZ | ||||
| 928-978 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PAYSON | AZ | |
| 928-988 | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | YUMA | AZ | |
| 929-202 | ONVOY, LLC- NY | 384C | NWYRCYZN14 | NY | |
| 929-211 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | NY | |
| 929-214 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN06 | NY | |
| 929-222 | ONVOY, LLC- NY | 384C | NWYRCYZN05 | NY | |
| 929-224 | ONVOY, LLC- NY | 384C | NWYRCYZN10 | NY | |
| 929-230 | METROPCS, INC. | 5562 | NWYRCYZN03 | NY | |
| 929-235 | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN08 | NY | |
| 929-237 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN05 | NY | |
| 929-238 | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN07 | NY | |
| 929-242 | BANDWIDTH.COM CLEC, LLC - NY | 997E | NWYRCYZN10 | NY | |
| 929-295 | TWC IP ENABLED SERVICES, LLC | 793K | NWYRCYZN06 | NY | |
| 929-300 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN09 | NY | |
| 929-311 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | NY | |
| 929-322 | ONVOY, LLC- NY | 384C | NWYRCYZN12 | NY | |
| 929-333 | ONVOY, LLC- NY | 384C | NWYRCYZN07 | NY | |
| 929-335 | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN10 | NY | |
| 929-338 | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN13 | NY |
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.