NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

17 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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, last 30 days — NPA 424
ONVOY, LLC - CA 15
OPENTACT INC. 1
NEW CINGULAR WIRELESS PCS, LLC 1
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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2007-10-23 424-603-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CULVERCITY CA
2007-10-19 424-218-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 EL SEGUNDO CA
2007-10-18 424-233-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C CMTN GRDN CA
2007-10-18 424-652-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 W ANGELES CA
2007-10-17 424-270-7XXX 7000–7999Assigned DMR COMMUNICATIONS INC. - CA 478A W ANGELES CA
2007-10-08 424-233-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 CMTN GRDN CA
2007-10-04 424-236-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 HAWTHORNE CA
2007-10-04 424-558-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TORRANCE CA
2007-09-27 424-236-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 HAWTHORNE CA
2007-09-26 424-558-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TORRANCE CA
2007-09-18 424-234-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 MALIBU CA
2007-09-18 424-235-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D MALIBU CA
2007-09-18 424-247-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 REDONDO CA
2007-09-18 424-744-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D SNMN SNMN CA
2007-09-18 424-744-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D SNMN SNMN CA
2007-09-13 424-731-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 TORRANCE CA
2007-09-12 424-230-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BEVERLYHLS CA
2007-09-11 424-456-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K HAWTHORNE CA
2007-09-11 424-456-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K HAWTHORNE CA
2007-09-11 424-832-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J W ANGELES CA
2007-09-07 424-201-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 TORRANCE CA
2007-09-07 424-229-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNMN SNMN CA
2007-09-02 424-298-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CULVERCITY CA
2007-08-29 424-227-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K INGLEWOOD CA
2007-08-29 424-227-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K INGLEWOOD CA
2007-08-29 424-750-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K INGLEWOOD CA
2007-08-24 424-232-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D CMTN GRDN CA
2007-08-24 424-232-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D CMTN GRDN CA
2007-08-24 424-232-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D CMTN GRDN CA
2007-08-24 424-232-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CMTN GRDN CA
2007-08-24 424-232-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CMTN GRDN CA
2007-08-24 424-232-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CMTN GRDN CA
2007-08-24 424-232-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CMTN GRDN CA
2007-08-24 424-232-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D CMTN GRDN CA
2007-08-24 424-233-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D CMTN GRDN CA
2007-08-24 424-233-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D CMTN GRDN CA
2007-08-24 424-233-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D CMTN GRDN CA
2007-08-24 424-233-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D CMTN GRDN CA
2007-08-24 424-233-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D CMTN GRDN CA
2007-08-23 424-230-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D BEVERLYHLS CA
2007-08-23 424-785-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CMTN CMTN CA
2007-08-23 424-785-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CMTN CMTN CA
2007-08-23 424-785-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CMTN CMTN CA
2007-08-21 424-215-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SAN PEDRO CA
2007-08-21 424-215-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SAN PEDRO CA
2007-08-21 424-215-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SAN PEDRO CA
2007-08-21 424-215-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SAN PEDRO CA
2007-08-21 424-215-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SAN PEDRO CA
2007-08-21 424-215-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SAN PEDRO CA
2007-08-21 424-215-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SAN PEDRO CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.