NumberResearch Membership · Data 09/18/2026

Recent thousands-block assignments

3,084 blocks assigned in June 2026 · from the daily NANPA thousands-block report, 09/18/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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, June 2026
ONVOY, LLC - CA 281
NEW CINGULAR WIRELESS PCS, LLC - GA 236
NEW CINGULAR WIRELESS PCS, LLC - IL 221
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 166
TERRA NOVA TELECOM INC. 159
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025 Clear
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Recent thousands-block assignments
AssignedBlockAssigneeOCNRate centerState
2026-06-26 350-261-4XXX ONVOY, LLC - CA 649C MODESTO CA
2026-06-26 350-261-5XXX ONVOY, LLC - CA 649C MODESTO CA
2026-06-26 350-261-6XXX ONVOY, LLC - CA 649C MODESTO CA
2026-06-26 350-261-7XXX ONVOY, LLC - CA 649C MODESTO CA
2026-06-26 350-261-8XXX ONVOY, LLC - CA 649C MODESTO CA
2026-06-26 350-261-9XXX ONVOY, LLC - CA 649C MODESTO CA
2026-06-26 401-758-2XXX ONVOY, LLC - RI 977E PROVIDENCE RI
2026-06-26 401-758-3XXX ONVOY, LLC - RI 977E PROVIDENCE RI
2026-06-26 405-241-8XXX ONVOY, LLC - OK 409F BRITTON OK
2026-06-26 405-242-7XXX ONVOY, LLC - OK 409F BRITTON OK
2026-06-26 405-507-9XXX ONVOY, LLC - OK 409F BRITTON OK
2026-06-26 405-705-3XXX ONVOY, LLC - OK 409F EDMOND OK
2026-06-26 405-705-4XXX ONVOY, LLC - OK 409F EDMOND OK
2026-06-26 405-705-6XXX ONVOY, LLC - OK 409F EDMOND OK
2026-06-26 405-709-0XXX ONVOY, LLC - OK 409F BETHANY OK
2026-06-26 405-709-3XXX ONVOY, LLC - OK 409F BETHANY OK
2026-06-26 405-709-4XXX ONVOY, LLC - OK 409F BETHANY OK
2026-06-26 405-809-2XXX ONVOY, LLC - OK 409F NORMAN OK
2026-06-26 405-809-4XXX ONVOY, LLC - OK 409F NORMAN OK
2026-06-26 405-809-6XXX ONVOY, LLC - OK 409F NORMAN OK
2026-06-26 408-939-1XXX ONVOY, LLC - CA 649C SNJS SOUTH CA
2026-06-26 408-939-6XXX ONVOY, LLC - CA 649C SNJS SOUTH CA
2026-06-26 408-939-7XXX ONVOY, LLC - CA 649C SNJS SOUTH CA
2026-06-26 408-939-8XXX ONVOY, LLC - CA 649C SNJS SOUTH CA
2026-06-26 408-939-9XXX ONVOY, LLC - CA 649C SNJS SOUTH CA
2026-06-26 415-678-1XXX ONVOY, LLC - CA 649C SNFC CNTRL CA
2026-06-26 415-701-8XXX ONVOY, LLC - CA 649C SNFC CNTRL CA
2026-06-26 417-558-1XXX ONVOY, LLC - MO 093F SPRINGFLD MO
2026-06-26 424-451-1XXX ONVOY, LLC - CA 649C SAN PEDRO CA
2026-06-26 424-518-4XXX ONVOY, LLC - CA 649C W ANGELES CA
2026-06-26 424-518-5XXX ONVOY, LLC - CA 649C W ANGELES CA
2026-06-26 424-518-6XXX ONVOY, LLC - CA 649C W ANGELES CA
2026-06-26 424-540-1XXX ONVOY, LLC - CA 649C SAN PEDRO CA
2026-06-26 424-540-8XXX ONVOY, LLC - CA 649C SAN PEDRO CA
2026-06-26 424-549-3XXX ONVOY, LLC - CA 649C CULVERCITY CA
2026-06-26 424-549-4XXX ONVOY, LLC - CA 649C CULVERCITY CA
2026-06-26 424-550-9XXX ONVOY, LLC - CA 649C BEVERLYHLS CA
2026-06-26 424-553-0XXX ONVOY, LLC - CA 649C BEVERLYHLS CA
2026-06-26 424-560-6XXX ONVOY, LLC - CA 649C CMTN GRDN CA
2026-06-26 424-560-7XXX ONVOY, LLC - CA 649C CMTN GRDN CA
2026-06-26 424-560-8XXX ONVOY, LLC - CA 649C CMTN GRDN CA
2026-06-26 424-562-2XXX ONVOY, LLC - CA 649C SNMN MRVS CA
2026-06-26 424-569-7XXX ONVOY, LLC - CA 649C SNMN SNMN CA
2026-06-26 424-569-8XXX ONVOY, LLC - CA 649C SNMN SNMN CA
2026-06-26 424-569-9XXX ONVOY, LLC - CA 649C SNMN SNMN CA
2026-06-26 424-572-5XXX ONVOY, LLC - CA 649C REDONDO CA
2026-06-26 424-572-6XXX ONVOY, LLC - CA 649C REDONDO CA
2026-06-26 424-572-7XXX ONVOY, LLC - CA 649C REDONDO CA
2026-06-26 424-572-8XXX ONVOY, LLC - CA 649C REDONDO CA
2026-06-26 424-572-9XXX ONVOY, LLC - CA 649C REDONDO CA

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.