NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

2 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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 909
ONVOY, LLC - CA 1
BANDWIDTH.COM CLEC, LLC - CA 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
2011-12-27 909-771-3XXX 3000–3999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2011-12-19 909-329-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2011-12-15 909-334-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CHINO CA
2011-12-08 909-667-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLAREMONT CA
2011-12-07 909-366-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J BIGBEAR LK CA
2011-12-06 909-332-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 S BERNDINO CA
2011-12-06 909-771-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 S BERNDINO CA
2011-11-30 909-301-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RIALTO CA
2011-11-30 909-301-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RIALTO CA
2011-11-21 909-334-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CHINO CA
2011-11-18 909-296-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J UPLAND CA
2011-11-18 909-301-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J RIALTO CA
2011-11-18 909-667-4XXX 4000–4999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CLAREMONT CA
2011-11-16 909-494-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E S BERNDINO CA
2011-11-16 909-965-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E S BERNDINO CA
2011-11-11 909-329-4XXX 4000–4999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2011-11-11 909-329-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2011-11-11 909-329-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2011-11-04 909-512-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 COLTON CA
2011-11-04 909-538-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 POMONA CA
2011-11-04 909-927-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CHINO CA
2011-11-01 909-283-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 REDLANDS CA
2011-10-27 909-333-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 FONTANA CA
2011-10-18 909-766-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J POMONA CA
2011-10-17 909-321-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ONTARIO CA
2011-10-12 909-726-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MARSHALL CA
2011-10-05 909-666-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 RIALTO CA
2011-09-30 909-296-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C UPLAND CA
2011-09-30 909-332-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 S BERNDINO CA
2011-09-30 909-343-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2011-09-30 909-343-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2011-09-28 909-334-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CHINO CA
2011-09-28 909-922-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ETIWANDA CA
2011-09-22 909-296-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E UPLAND CA
2011-09-22 909-329-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E FONTANA CA
2011-09-20 909-329-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 FONTANA CA
2011-09-20 909-332-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2011-09-20 909-332-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2011-09-20 909-708-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D S BERNDINO CA
2011-09-14 909-295-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ONTARIO CA
2011-09-14 909-927-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CHINO CA
2011-09-13 909-329-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FONTANA CA
2011-09-13 909-329-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FONTANA CA
2011-09-12 909-726-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MARSHALL CA
2011-09-08 909-296-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 UPLAND CA
2011-09-08 909-296-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 UPLAND CA
2011-09-07 909-703-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 CHINO CA
2011-09-02 909-500-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CALIMESA CA
2011-08-26 909-301-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RIALTO CA
2011-08-25 909-332-1XXX 1000–1999Assigned WIDE VOICE, LLC - CA 252F S BERNDINO CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.