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 |
|---|---|---|---|---|---|
| 2026-05-01 | 276-449-7XXX | LEVEL 3 COMMUNICATIONS, LLC - VA | 8825 | DUFFIELD | VA |
| 2026-05-01 | 331-325-3XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | LEMONT | IL |
| 2026-05-01 | 331-325-4XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | LEMONT | IL |
| 2026-05-01 | 331-325-5XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | LEMONT | IL |
| 2026-05-01 | 360-622-4XXX | ACCELERATE NETWORKS LLC | 147L | SAN JUAN | WA |
| 2026-05-01 | 369-237-4XXX | T-MOBILE USA, INC. | 6529 | LOWER LAKE | CA |
| 2026-05-01 | 369-237-5XXX | T-MOBILE USA, INC. | 6529 | LOWER LAKE | CA |
| 2026-05-01 | 425-325-7XXX | BANDWIDTH.COM CLEC, LLC - WA | 006F | BOTHELL | WA |
| 2026-05-01 | 509-206-4XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLARKSTON | WA |
| 2026-05-01 | 509-206-7XXX | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLARKSTON | WA |
| 2026-05-01 | 564-241-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA | 5812 | CAMAS | WA |
| 2026-05-01 | 564-263-4XXX | ONVOY, LLC - WA | 483E | OLYMPIA | WA |
| 2026-05-01 | 574-412-3XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN | 6725 | SOUTH BEND | IN |
| 2026-05-01 | 629-327-0XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | NASHVILLE | TN |
| 2026-05-01 | 629-327-9XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | NASHVILLE | TN |
| 2026-05-01 | 629-337-5XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | NASHVILLE | TN |
| 2026-05-01 | 629-401-5XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | NASHVILLE | TN |
| 2026-05-01 | 629-876-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | NASHVILLE | TN |
| 2026-05-01 | 629-876-3XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | NASHVILLE | TN |
| 2026-05-01 | 629-876-4XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | NASHVILLE | TN |
| 2026-05-01 | 731-500-4XXX | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | PARSONS | TN |
| 2026-05-01 | 743-206-3XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | REEDS | NC |
| 2026-05-01 | 743-206-4XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | REEDS | NC |
| 2026-05-01 | 856-660-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | VINELAND | NJ |
| 2026-05-01 | 862-460-9XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | CHATHAM | NJ |
| 2026-05-01 | 908-257-7XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | FANWOOD | NJ |
| 2026-05-01 | 931-470-8XXX | LEVEL 3 COMMUNICATIONS, LLC - TN | 4806 | BAXTER | TN |
| 2026-05-01 | 970-576-7XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | GREELEY | CO |
| 2026-05-01 | 970-907-0XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | FT COLLINS | CO |
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.