NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

24 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 747
ONVOY, LLC - CA 12
EXIANT COMMUNICATIONS LLC 5
PEERLESS NETWORK OF CALIFORNIA, LLC - CA 2
NEW CINGULAR WIRELESS PCS, LLC 2
BANDWIDTH.COM CLEC, LLC - CA 2
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
2014-09-18 747-322-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SNFN SNFN CA
2014-09-17 747-229-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C BRBN BRBN CA
2014-09-15 747-232-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SNFN GRHL CA
2014-09-15 747-232-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C SNFN GRHL CA
2014-09-05 747-228-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 GLENDALE CA
2014-09-05 747-232-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNFN GRHL CA
2014-09-03 747-322-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C SNFN SNFN CA
2014-09-03 747-322-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C SNFN SNFN CA
2014-08-29 747-998-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D VAN NUYS CA
2014-08-28 747-225-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C SNFN PACM CA
2014-08-28 747-232-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFN GRHL CA
2014-08-26 747-225-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SNFN PACM CA
2014-08-22 747-229-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C BRBN BRBN CA
2014-08-20 747-223-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C BRBN SNVY CA
2014-08-20 747-998-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 VAN NUYS CA
2014-08-11 747-998-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C VAN NUYS CA
2014-08-05 747-225-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K SNFN PACM CA
2014-07-31 747-225-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SNFN PACM CA
2014-07-30 747-232-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SNFN GRHL CA
2014-07-22 747-322-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFN SNFN CA
2014-07-22 747-322-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFN SNFN CA
2014-06-26 747-232-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNFN GRHL CA
2014-06-17 747-229-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BRBN BRBN CA
2014-06-16 747-225-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J SNFN PACM CA
2014-06-10 747-322-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SNFN SNFN CA
2014-05-23 747-221-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E GLENDALE CA
2014-05-21 747-226-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CANOGAPARK CA
2014-05-19 747-225-5XXX 5000–5999Assigned CURATEL, LLC - CA 993B SNFN PACM CA
2014-04-24 747-232-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SNFN GRHL CA
2014-04-18 747-226-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CANOGAPARK CA
2014-04-18 747-228-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E GLENDALE CA
2014-04-18 747-228-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E GLENDALE CA
2014-04-18 747-228-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E GLENDALE CA
2014-04-14 747-232-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNFN GRHL CA
2014-04-10 747-500-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNFN SNFN CA
2014-03-19 747-221-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J GLENDALE CA
2014-03-07 747-529-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K SNFN SPLV CA
2014-03-04 747-500-7XXX 7000–7999Assigned TWC IP ENABLED SERVICES, LLC 793K SNFN SNFN CA
2014-02-28 747-228-1XXX 1000–1999Assigned CONNECTTO COMMUNICATIONS, INC. - CA 863D GLENDALE CA
2014-02-27 747-202-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NORTHRIDGE CA
2014-02-27 747-202-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NORTHRIDGE CA
2014-02-27 747-225-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFN PACM CA
2014-02-27 747-225-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFN PACM CA
2014-02-24 747-221-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 GLENDALE CA
2013-12-20 747-529-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D SNFN SPLV CA
2013-12-17 747-300-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFN GRHL CA
2013-12-17 747-300-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFN GRHL CA
2013-12-09 747-300-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNFN GRHL CA
2013-11-22 747-221-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E GLENDALE CA
2013-11-22 747-221-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E GLENDALE CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.