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 |
|---|---|---|---|---|---|
| 2026-05-27 | 402-620-0XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE | 5807 | FREMONT | NE |
| 2026-05-27 | 435-366-5XXX | T-MOBILE USA, INC. | 6529 | ST GEORGE | UT |
| 2026-05-27 | 435-366-9XXX | T-MOBILE USA, INC. | 6529 | ST GEORGE | UT |
| 2026-05-27 | 442-472-1XXX | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | SAN MARCOS | CA |
| 2026-05-27 | 442-472-2XXX | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7147 | SAN MARCOS | CA |
| 2026-05-27 | 443-519-4XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | TOWSON | MD |
| 2026-05-27 | 472-255-4XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | 6324 | CASTLEHAYN | NC |
| 2026-05-27 | 475-389-7XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | 6388 | WATERBURY | CT |
| 2026-05-27 | 475-392-7XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | 6388 | NEW HAVEN | CT |
| 2026-05-27 | 475-392-9XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | 6388 | NEW HAVEN | CT |
| 2026-05-27 | 517-385-6XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LANSING | MI |
| 2026-05-27 | 517-385-7XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LANSING | MI |
| 2026-05-27 | 517-385-8XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LANSING | MI |
| 2026-05-27 | 517-385-9XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LANSING | MI |
| 2026-05-27 | 557-254-0XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LADUE | MO |
| 2026-05-27 | 557-254-1XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LADUE | MO |
| 2026-05-27 | 557-254-2XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LADUE | MO |
| 2026-05-27 | 557-254-3XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LADUE | MO |
| 2026-05-27 | 557-254-4XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LADUE | MO |
| 2026-05-27 | 557-254-5XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LADUE | MO |
| 2026-05-27 | 557-254-6XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LADUE | MO |
| 2026-05-27 | 557-254-7XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LADUE | MO |
| 2026-05-27 | 557-254-8XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LADUE | MO |
| 2026-05-27 | 557-254-9XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LADUE | MO |
| 2026-05-27 | 571-934-0XXX | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | DULLES | VA |
| 2026-05-27 | 585-780-4XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ROCHESTER | NY |
| 2026-05-27 | 585-780-5XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ROCHESTER | NY |
| 2026-05-27 | 585-780-6XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ROCHESTER | NY |
| 2026-05-27 | 585-780-7XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ROCHESTER | NY |
| 2026-05-27 | 606-529-9XXX | OPENTACT INC. | 824J | CORBIN | KY |
| 2026-05-27 | 657-708-5XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PLACENTIA | CA |
| 2026-05-27 | 667-549-7XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | ANNAPOLIS | MD |
| 2026-05-27 | 667-846-8XXX | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | COCKEYSVL | MD |
| 2026-05-27 | 728-465-1XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | BELLEGLADE | FL |
| 2026-05-27 | 728-465-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | BELLEGLADE | FL |
| 2026-05-27 | 734-328-3XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BELLEVILLE | MI |
| 2026-05-27 | 738-222-5XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 06 | CA |
| 2026-05-27 | 738-222-6XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 06 | CA |
| 2026-05-27 | 738-222-7XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 06 | CA |
| 2026-05-27 | 738-222-8XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 06 | CA |
| 2026-05-27 | 738-222-9XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LSAN DA 06 | CA |
| 2026-05-27 | 772-313-4XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | VERO BEACH | FL |
| 2026-05-27 | 772-313-5XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | VERO BEACH | FL |
| 2026-05-27 | 803-706-6XXX | TELEPORT COMMUNICATIONS AMERICA SC- LLC | 635C | EASTOVER | SC |
| 2026-05-27 | 818-607-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CANOGAPARK | CA |
| 2026-05-27 | 818-607-3XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CANOGAPARK | CA |
| 2026-05-27 | 818-607-4XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CANOGAPARK | CA |
| 2026-05-27 | 828-583-1XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | 6324 | MARION | NC |
| 2026-05-27 | 835-283-7XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | EASTON | PA |
| 2026-05-27 | 848-395-2XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | TOMS RIVER | NJ |
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.