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 |
|---|---|---|---|---|---|
| 2026-05-19 | 531-795-8XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE | 5807 | LINCOLN | NE |
| 2026-05-19 | 531-795-9XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE | 5807 | LINCOLN | NE |
| 2026-05-19 | 539-284-5XXX | METROPCS, INC. | 5562 | CHECOTAH | OK |
| 2026-05-19 | 539-304-5XXX | METROPCS, INC. | 5562 | GROVE | OK |
| 2026-05-19 | 563-456-6XXX | HD CARRIER LLC | 321J | DAVENPORT | IA |
| 2026-05-19 | 563-456-7XXX | HD CARRIER LLC | 321J | DAVENPORT | IA |
| 2026-05-19 | 572-358-6XXX | METROPCS, INC. | 5562 | CHANDLER | OK |
| 2026-05-19 | 574-774-4XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | GOSHEN | IN |
| 2026-05-19 | 574-774-7XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | GOSHEN | IN |
| 2026-05-19 | 580-557-5XXX | METROPCS, INC. | 5562 | TONKAWA | OK |
| 2026-05-19 | 580-748-7XXX | METROPCS, INC. | 5562 | ALVA | OK |
| 2026-05-19 | 602-282-7XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2026-05-19 | 602-895-2XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2026-05-19 | 602-915-1XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2026-05-19 | 602-915-2XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2026-05-19 | 602-915-3XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2026-05-19 | 602-915-4XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2026-05-19 | 602-915-5XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2026-05-19 | 602-915-6XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2026-05-19 | 602-915-7XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2026-05-19 | 602-915-8XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2026-05-19 | 602-915-9XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2026-05-19 | 608-474-9XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | ADAMS | WI |
| 2026-05-19 | 615-346-6XXX | TELEPORT COMMUNICATIONS AMERICA, LLC - TN | 114F | NASHVILLE | TN |
| 2026-05-19 | 618-886-8XXX | T-MOBILE USA, INC. | 6529 | TROY | IL |
| 2026-05-19 | 623-373-1XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2026-05-19 | 623-373-2XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2026-05-19 | 623-373-3XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2026-05-19 | 623-373-4XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2026-05-19 | 623-373-5XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2026-05-19 | 623-373-6XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2026-05-19 | 623-373-7XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2026-05-19 | 623-373-8XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2026-05-19 | 623-373-9XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PHOENIX | AZ |
| 2026-05-19 | 626-819-5XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | EL MONTE | CA |
| 2026-05-19 | 626-819-8XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | EL MONTE | CA |
| 2026-05-19 | 626-819-9XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | EL MONTE | CA |
| 2026-05-19 | 641-266-1XXX | METROPCS, INC. | 5562 | ACKLEY | IA |
| 2026-05-19 | 645-253-3XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | MIAMI | FL |
| 2026-05-19 | 645-253-4XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | MIAMI | FL |
| 2026-05-19 | 645-253-5XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | MIAMI | FL |
| 2026-05-19 | 661-692-0XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | BKFD SOUTH | CA |
| 2026-05-19 | 661-692-1XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | BKFD SOUTH | CA |
| 2026-05-19 | 661-692-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | BKFD SOUTH | CA |
| 2026-05-19 | 680-435-5XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | SYLVAN BCH | NY |
| 2026-05-19 | 681-452-7XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WV | 6394 | HEDGESVL | WV |
| 2026-05-19 | 716-758-7XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | CLYMER | NY |
| 2026-05-19 | 731-289-2XXX | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEDINA | TN |
| 2026-05-19 | 731-289-6XXX | POWERTEL MEMPHIS LICENSES, INC. | 7474 | MEDINA | TN |
| 2026-05-19 | 754-258-1XXX | HD CARRIER LLC | 321J | CORAL SPG | FL |
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.