NumberResearchRecent thousands-block assignments
3,379 blocks assigned in May 2026 · from the daily NANPA thousands-block report, 09/18/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, May 2026
New assignments by month
Sep 2026
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| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2026-05-29 | 205-304-7XXX | IP HORIZON LLC | 515J | DORA | AL |
| 2026-05-29 | 205-316-5XXX | IP HORIZON LLC | 515J | CENTREVL | AL |
| 2026-05-29 | 205-713-2XXX | IP HORIZON LLC | 515J | CORDOVA | AL |
| 2026-05-29 | 205-724-1XXX | IP HORIZON LLC | 515J | PARRISH | AL |
| 2026-05-29 | 205-727-2XXX | IP HORIZON LLC | 515J | CARBONHILL | AL |
| 2026-05-29 | 227-230-3XXX | ONVOY, LLC - MD | 876D | WSHNGTNZN5 | MD |
| 2026-05-29 | 227-272-3XXX | ONVOY, LLC - MD | 876D | OAKLAND | MD |
| 2026-05-29 | 227-289-3XXX | ONVOY, LLC - MD | 876D | WALDORF | MD |
| 2026-05-29 | 227-290-4XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2026-05-29 | 227-293-1XXX | ONVOY, LLC - MD | 876D | CUMBERLAND | MD |
| 2026-05-29 | 227-294-4XXX | ONVOY, LLC - MD | 876D | WSNG236Z13 | MD |
| 2026-05-29 | 227-297-4XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2026-05-29 | 227-297-5XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2026-05-29 | 227-297-6XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2026-05-29 | 227-297-7XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | LAUREL236 | MD |
| 2026-05-29 | 227-334-1XXX | ONVOY, LLC - MD | 876D | KEEDYSVL | MD |
| 2026-05-29 | 227-770-5XXX | ONVOY, LLC - MD | 876D | WSNGTNZN11 | MD |
| 2026-05-29 | 228-290-5XXX | ONVOY, LLC - MS | 719E | PASSCHRSTN | MS |
| 2026-05-29 | 229-540-9XXX | ONVOY, LLC - GA | 067D | CAIRO | GA |
| 2026-05-29 | 229-582-9XXX | ONVOY, LLC - GA | 067D | AMERICUS | GA |
| 2026-05-29 | 229-714-1XXX | ONVOY, LLC - GA | 067D | THOMASVL | GA |
| 2026-05-29 | 229-780-1XXX | ONVOY, LLC - GA | 067D | ALBANY | GA |
| 2026-05-29 | 235-219-4XXX | ONVOY, LLC - MO | 093F | ST JAMES | MO |
| 2026-05-29 | 240-359-5XXX | ONVOY, LLC - MD | 876D | INDIANHEAD | MD |
| 2026-05-29 | 240-894-9XXX | ONVOY, LLC - MD | 876D | LXTNPKGRML | MD |
| 2026-05-29 | 251-203-2XXX | IP HORIZON LLC | 515J | BELLEFONTN | AL |
| 2026-05-29 | 251-247-4XXX | IP HORIZON LLC | 515J | JACKSON | AL |
| 2026-05-29 | 251-296-8XXX | IP HORIZON LLC | 515J | FLOMATON | AL |
| 2026-05-29 | 251-346-3XXX | IP HORIZON LLC | 515J | EVERGREEN | AL |
| 2026-05-29 | 251-350-4XXX | IP HORIZON LLC | 515J | BAYMINETTE | AL |
| 2026-05-29 | 251-365-3XXX | IP HORIZON LLC | 515J | CITRONELLE | AL |
| 2026-05-29 | 251-412-6XXX | IP HORIZON LLC | 515J | MCINTOSH | AL |
| 2026-05-29 | 251-506-0XXX | IP HORIZON LLC | 515J | FAIRHOPE | AL |
| 2026-05-29 | 251-531-0XXX | IP HORIZON LLC | 515J | MT VERNON | AL |
| 2026-05-29 | 251-727-9XXX | IP HORIZON LLC | 515J | BREWTON | AL |
| 2026-05-29 | 252-607-5XXX | ONVOY, LLC - NC | 638E | KINSTON | NC |
| 2026-05-29 | 252-869-5XXX | ONVOY, LLC - NC | 638E | GREENVILLE | NC |
| 2026-05-29 | 252-869-6XXX | ONVOY, LLC - NC | 638E | GREENVILLE | NC |
| 2026-05-29 | 252-869-7XXX | ONVOY, LLC - NC | 638E | GREENVILLE | NC |
| 2026-05-29 | 252-869-8XXX | ONVOY, LLC - NC | 638E | GREENVILLE | NC |
| 2026-05-29 | 252-869-9XXX | ONVOY, LLC - NC | 638E | GREENVILLE | NC |
| 2026-05-29 | 254-619-8XXX | ONVOY, LLC - TX | 903C | KILLEEN | TX |
| 2026-05-29 | 254-619-9XXX | ONVOY, LLC - TX | 903C | KILLEEN | TX |
| 2026-05-29 | 256-243-0XXX | IP HORIZON LLC | 515J | GUNTERSVL | AL |
| 2026-05-29 | 256-271-0XXX | IP HORIZON LLC | 515J | ROGERSVL | AL |
| 2026-05-29 | 256-356-5XXX | IP HORIZON LLC | 515J | RED BAY | AL |
| 2026-05-29 | 256-358-8XXX | IP HORIZON LLC | 515J | MUNFORD | AL |
| 2026-05-29 | 256-369-8XXX | IP HORIZON LLC | 515J | SYLACAUGA | AL |
| 2026-05-29 | 256-387-8XXX | IP HORIZON LLC | 515J | HARTSELLE | AL |
| 2026-05-29 | 256-467-9XXX | IP HORIZON LLC | 515J | GADSDEN | AL |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.