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
2006-11-22 424-298-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CULVERCITY CA
2006-11-22 424-772-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SAN PEDRO CA
2006-11-22 424-772-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SAN PEDRO CA
2006-11-16 424-652-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 W ANGELES CA
2006-11-15 424-901-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 W ANGELES CA
2006-11-09 424-704-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CMTN CMTN CA
2006-11-08 424-263-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LOMITA CA
2006-11-08 424-652-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 W ANGELES CA
2006-11-08 424-789-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 INGLEWOOD CA
2006-11-08 424-789-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 INGLEWOOD CA
2006-11-08 424-789-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 INGLEWOOD CA
2006-11-02 424-652-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 W ANGELES CA
2006-10-31 424-202-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J BEVERLYHLS CA
2006-10-31 424-202-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J BEVERLYHLS CA
2006-10-27 424-288-2XXX 2000–2999Assigned PACIFIC BELL 9740 BEVERLYHLS CA
2006-10-27 424-288-3XXX 3000–3999Assigned PACIFIC BELL 9740 BEVERLYHLS CA
2006-10-26 424-202-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BEVERLYHLS CA
2006-10-26 424-202-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BEVERLYHLS CA
2006-10-26 424-202-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BEVERLYHLS CA
2006-10-26 424-202-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BEVERLYHLS CA
2006-10-25 424-294-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 HAWTHORNE CA
2006-10-19 424-294-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 HAWTHORNE CA
2006-10-16 424-263-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LOMITA CA
2006-10-16 424-558-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TORRANCE CA
2006-10-16 424-644-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MALIBU CA
2006-10-16 424-731-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TORRANCE CA
2006-10-16 424-744-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SNMN SNMN CA
2006-10-09 424-603-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CULVERCITY CA
2006-09-27 424-456-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 HAWTHORNE CA
2006-09-27 424-568-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J INGLEWOOD CA
2006-09-27 424-568-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J INGLEWOOD CA
2006-09-27 424-568-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J INGLEWOOD CA
2006-09-27 424-568-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J INGLEWOOD CA
2006-09-27 424-568-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J INGLEWOOD CA
2006-09-27 424-568-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J INGLEWOOD CA
2006-09-27 424-568-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J INGLEWOOD CA
2006-09-27 424-568-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J INGLEWOOD CA
2006-09-27 424-568-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J INGLEWOOD CA
2006-09-27 424-568-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J INGLEWOOD CA
2006-09-21 424-675-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C HAWTHORNE CA
2006-09-20 424-477-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SAN PEDRO CA
2006-09-18 424-653-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BEVERLYHLS CA
2006-09-14 424-298-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CULVERCITY CA
2006-09-14 424-644-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MALIBU CA
2006-09-14 424-832-8XXX 8000–8999Assigned PACIFIC BELL (COMPETITIVE) 7480 W ANGELES CA
2006-09-13 424-744-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNMN SNMN CA
2006-09-13 424-832-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 W ANGELES CA
2006-09-08 424-653-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BEVERLYHLS CA
2006-09-08 424-653-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BEVERLYHLS CA
2006-09-07 424-675-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HAWTHORNE 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.