NumberResearchRecent prefix assignments
347 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/29/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
Most active assignees, last 30 days
New assignments by month
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Oct 2025
Quick find in this area code:
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2018-03-02 | 571-310 | 0–9 XXXall 10 · 2 holders which blocks → | BANDWIDTH.COM CLEC, LLC - VA | 079F | WSNGTNZN19 | VA |
| 2018-03-02 | 712-686 | 2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → | T-MOBILE USA, INC. | 6529 | SCRANTON | IA |
| 2018-03-02 | 757-699 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | ONVOY, LLC - VA | 138E | WHALEYVL | VA |
| 2018-03-02 | 769-428 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | BRANDON | MS |
| 2018-03-02 | 850-739 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - FL | 982E | TALLAHASSE | FL |
| 2018-03-02 | 850-771 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - FL | 937C | PANAMACITY | FL |
| 2018-03-02 | 850-930 | 0–9 XXXall 10 · 2 holders which blocks → | ONVOY, LLC - FL | 937C | HOLLEYNVRR | FL |
| 2018-03-02 | 854-400 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - SC | 548E | FLORENCE | SC |
| 2018-03-02 | 917-908 | 0–9 XXXall 10 · 2 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | NWYRCYZN09 | NY |
| 2018-03-02 | 929-468 | 0–9 XXXall 10 · 3 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN09 | NY |
| 2018-03-02 | 940-252 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - TX | 004F | DENTON | TX |
| 2018-03-02 | 941-246 | 0–9 XXXall 10 · 4 holders which blocks → | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | 8300 | PTCHARLOTT | FL |
| 2018-03-01 | 228-335 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - MS | 719E | TANNERWLMS | MS |
| 2018-03-01 | 236-206 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Aldergrove | — |
| 2018-03-01 | 236-207 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Boston Bar | — |
| 2018-03-01 | 236-208 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Bowen Island | — |
| 2018-03-01 | 236-210 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Britannia Beach | — |
| 2018-03-01 | 365-805 | not yet reported which blocks → | Iristel Inc. | 154E | Aurora | — |
| 2018-03-01 | 365-806 | not yet reported which blocks → | Iristel Inc. | 154E | Brampton | — |
| 2018-03-01 | 646-907 | 0–9 XXXall 10 · 5 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | NWYRCYZN01 | NY |
| 2018-03-01 | 825-258 | not yet reported which blocks → | Iristel Inc. | 154E | Calgary | — |
| 2018-03-01 | 954-546 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - FL | 982E | POMPANOBCH | FL |
| 2018-02-28 | 579-442 | not yet reported which blocks → | Cooptel | 818D | Granby | — |
| 2018-02-28 | 581-763 | not yet reported which blocks → | Videotron Ltd. | 8306 | Disraeli | — |
| 2018-02-28 | 639-637 | not yet reported which blocks → | Iristel Inc. | 154E | Saskatoon | — |
| 2018-02-28 | 816-909 | 0XXX9XXX · 2 holders which blocks → | WINDSTREAM MISSOURI, INC. | 1885 | UNION STAR | MO |
| 2018-02-28 | 825-257 | not yet reported which blocks → | Iristel Inc. | 154E | Calgary | — |
| 2018-02-28 | 870-383 | 0XXX1XXX2XXX3XXX8XXX9XXX · 5 holders which blocks → | WINDSTREAM ARKANSAS, INC. | 1691 | ELAINE | AR |
| 2018-02-28 | 870-393 | 0–9 XXXall 10 · 6 holders which blocks → | AIRUS, INC. - AR | 578H | JONESBORO | AR |
| 2018-02-27 | 216-238 | 0–9 XXXall 10 · 3 holders which blocks → | EXIANT COMMUNICATIONS LLC | 114J | CLEVELAND | OH |
| 2018-02-27 | 224-288 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BARRINGTON | IL |
| 2018-02-27 | 254-329 | 0–9 XXXall 10 · 4 holders which blocks → | WINDSTREAM SUGAR LAND, LLC | 2147 | COOLIDGE | TX |
| 2018-02-27 | 412-935 | 0–9 XXXwhole prefix which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | PTTSBGZON1 | PA |
| 2018-02-27 | 430-237 | 0–9 XXXall 10 · 4 holders which blocks → | VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW | 1163 | BECKVILLE | TX |
| 2018-02-27 | 430-238 | 0XXX1XXX2XXX6XXX8XXX9XXX · 6 holders which blocks → | VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW | 1181 | DEPORT | TX |
| 2018-02-27 | 437-229 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2018-02-27 | 437-230 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2018-02-27 | 437-231 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2018-02-27 | 437-232 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2018-02-27 | 437-233 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2018-02-27 | 437-234 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2018-02-27 | 437-235 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2018-02-27 | 437-236 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2018-02-27 | 437-237 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2018-02-27 | 437-238 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2018-02-27 | 437-239 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2018-02-27 | 437-240 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2018-02-27 | 437-241 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2018-02-27 | 437-242 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
| 2018-02-27 | 437-243 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Toronto | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.