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 |
|---|---|---|---|---|---|
| 2026-05-26 | 331-339-3XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | AURORA | IL |
| 2026-05-26 | 334-334-1XXX | IP HORIZON LLC | 515J | MONTGOMERY | AL |
| 2026-05-26 | 334-334-2XXX | IP HORIZON LLC | 515J | MONTGOMERY | AL |
| 2026-05-26 | 334-938-7XXX | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | WETUMPKA | AL |
| 2026-05-26 | 360-244-8XXX | PEERLESS NETWORK OF WASHINGTON, LLC - WA | 159F | LONG BEACH | WA |
| 2026-05-26 | 360-745-7XXX | PEERLESS NETWORK OF WASHINGTON, LLC - WA | 159F | PORTLUDLOW | WA |
| 2026-05-26 | 360-776-5XXX | PEERLESS NETWORK OF WASHINGTON, LLC - WA | 159F | BUCKLEY | WA |
| 2026-05-26 | 412-702-7XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | PTGSBNZN22 | PA |
| 2026-05-26 | 424-569-1XXX | NUSO, LLC | 732J | SNMN SNMN | CA |
| 2026-05-26 | 424-572-0XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDONDO | CA |
| 2026-05-26 | 424-572-1XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDONDO | CA |
| 2026-05-26 | 424-572-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDONDO | CA |
| 2026-05-26 | 509-419-4XXX | PEERLESS NETWORK OF WASHINGTON, LLC - WA | 159F | COLVILLE | WA |
| 2026-05-26 | 509-996-1XXX | PEERLESS NETWORK OF WASHINGTON, LLC - WA | 159F | TWISP | WA |
| 2026-05-26 | 539-287-3XXX | PEERLESS NETWORK OF OKLAHOMA, LLC - OK | 384H | YALE | OK |
| 2026-05-26 | 539-877-7XXX | PEERLESS NETWORK OF OKLAHOMA, LLC - OK | 384H | HARTSHORNE | OK |
| 2026-05-26 | 571-749-6XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | WSNGTNZN17 | VA |
| 2026-05-26 | 571-764-5XXX | TELNYX LLC | 073H | OCCOQUAN | VA |
| 2026-05-26 | 608-865-3XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI | 6508 | GALESVILLE | WI |
| 2026-05-26 | 657-871-0XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2026-05-26 | 657-871-1XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2026-05-26 | 657-871-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2026-05-26 | 657-871-3XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2026-05-26 | 657-871-4XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2026-05-26 | 657-871-5XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2026-05-26 | 657-871-6XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2026-05-26 | 657-871-7XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2026-05-26 | 657-871-8XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2026-05-26 | 657-871-9XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HUNTITNBCH | CA |
| 2026-05-26 | 657-872-0XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2026-05-26 | 657-872-1XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2026-05-26 | 657-872-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2026-05-26 | 657-872-3XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2026-05-26 | 657-872-4XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2026-05-26 | 657-872-5XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2026-05-26 | 657-872-6XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2026-05-26 | 657-872-7XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2026-05-26 | 657-872-8XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2026-05-26 | 657-872-9XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2026-05-26 | 659-258-5XXX | IP HORIZON LLC | 515J | WARRIOR | AL |
| 2026-05-26 | 659-258-6XXX | IP HORIZON LLC | 515J | WARRIOR | AL |
| 2026-05-26 | 659-291-3XXX | IP HORIZON LLC | 515J | PINSON | AL |
| 2026-05-26 | 659-291-4XXX | IP HORIZON LLC | 515J | PINSON | AL |
| 2026-05-26 | 659-301-7XXX | IP HORIZON LLC | 515J | JASPER | AL |
| 2026-05-26 | 659-301-8XXX | IP HORIZON LLC | 515J | JASPER | AL |
| 2026-05-26 | 659-308-8XXX | IP HORIZON LLC | 515J | BESSEMER | AL |
| 2026-05-26 | 659-308-9XXX | IP HORIZON LLC | 515J | BESSEMER | AL |
| 2026-05-26 | 659-374-1XXX | IP HORIZON LLC | 515J | BIRMINGHAM | AL |
| 2026-05-26 | 659-374-2XXX | IP HORIZON LLC | 515J | BIRMINGHAM | AL |
| 2026-05-26 | 659-595-4XXX | IP HORIZON LLC | 515J | TUSCALOOSA | 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.