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
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| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2026-05-28 | 667-539-3XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BALTIMORE | MD |
| 2026-05-28 | 667-539-4XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BALTIMORE | MD |
| 2026-05-28 | 667-539-7XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BALTIMORE | MD |
| 2026-05-28 | 667-539-8XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BALTIMORE | MD |
| 2026-05-28 | 681-543-8XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SUMMERSVL | WV |
| 2026-05-28 | 701-617-7XXX | LEVEL 3 COMMUNICATIONS, LLC - ND | 8054 | TOWNER | ND |
| 2026-05-28 | 701-618-7XXX | LEVEL 3 COMMUNICATIONS, LLC - ND | 8054 | MOHALL | ND |
| 2026-05-28 | 730-587-4XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OLNEY | IL |
| 2026-05-28 | 730-587-5XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OLNEY | IL |
| 2026-05-28 | 730-587-6XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OLNEY | IL |
| 2026-05-28 | 730-587-7XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OLNEY | IL |
| 2026-05-28 | 730-587-9XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OLNEY | IL |
| 2026-05-28 | 737-435-0XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2026-05-28 | 737-435-1XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2026-05-28 | 737-435-2XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2026-05-28 | 737-435-3XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2026-05-28 | 737-435-4XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2026-05-28 | 737-435-5XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2026-05-28 | 737-435-6XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2026-05-28 | 737-435-7XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2026-05-28 | 737-435-8XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2026-05-28 | 737-435-9XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2026-05-28 | 737-438-2XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2026-05-28 | 737-438-3XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2026-05-28 | 737-438-5XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2026-05-28 | 737-438-6XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2026-05-28 | 737-438-7XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2026-05-28 | 737-438-9XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2026-05-28 | 743-413-1XXX | WIDE VOICE, LLC - NC | 465H | GREENSBORO | NC |
| 2026-05-28 | 743-413-3XXX | WIDE VOICE, LLC - NC | 465H | GREENSBORO | NC |
| 2026-05-28 | 747-309-5XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CANOGAPARK | CA |
| 2026-05-28 | 828-912-1XXX | WIDE VOICE, LLC - NC | 465H | ASHEVILLE | NC |
| 2026-05-28 | 828-912-2XXX | WIDE VOICE, LLC - NC | 465H | ASHEVILLE | NC |
| 2026-05-28 | 830-652-4XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | NEWBRANFLS | TX |
| 2026-05-28 | 830-652-5XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | NEWBRANFLS | TX |
| 2026-05-28 | 830-652-6XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | NEWBRANFLS | TX |
| 2026-05-28 | 840-272-4XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CHINO | CA |
| 2026-05-28 | 840-272-5XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CHINO | CA |
| 2026-05-28 | 904-617-6XXX | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | 8300 | ST JOHNS | FL |
| 2026-05-28 | 928-406-2XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WINSLOW | AZ |
| 2026-05-28 | 948-259-4XXX | TELNYX LLC | 073H | BELLEHAVEN | VA |
| 2026-05-28 | 970-370-7XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FORTMORGAN | CO |
| 2026-05-28 | 980-542-6XXX | TELEPORT COMMUNICATIONS AMERICA, LLC - NC | 8389 | CONCORD | NC |
| 2026-05-28 | 980-810-1XXX | WIDE VOICE, LLC - NC | 465H | CHARLOTTE | NC |
| 2026-05-28 | 980-810-8XXX | WIDE VOICE, LLC - NC | 465H | CHARLOTTE | NC |
| 2026-05-28 | 984-414-1XXX | WIDE VOICE, LLC - NC | 465H | RALEIGH | NC |
| 2026-05-28 | 984-414-4XXX | WIDE VOICE, LLC - NC | 465H | RALEIGH | NC |
| 2026-05-27 | 224-373-7XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL | 6333 | DEERFIELD | IL |
| 2026-05-27 | 225-575-6XXX | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | GALVEZ | LA |
| 2026-05-27 | 313-773-7XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DETROITZN5 | MI |
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.