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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2012-09-21 909-368-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E FONTANA CA
2012-09-21 909-451-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CLAREMONT CA
2012-09-21 909-451-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CLAREMONT CA
2012-09-21 909-480-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CLAREMONT CA
2012-09-21 909-578-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E FONTANA CA
2012-09-12 909-705-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MENTONE CA
2012-09-10 909-368-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FONTANA CA
2012-09-10 909-368-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FONTANA CA
2012-09-07 909-300-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E S BERNDINO CA
2012-09-07 909-913-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E S BERNDINO CA
2012-08-30 909-321-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C ONTARIO CA
2012-08-29 909-306-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CHINO CA
2012-08-23 909-368-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2012-08-23 909-368-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2012-08-23 909-368-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D FONTANA CA
2012-08-23 909-480-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CLAREMONT CA
2012-08-13 909-301-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RIALTO CA
2012-08-13 909-301-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RIALTO CA
2012-08-13 909-345-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E DIAMONDBAR CA
2012-08-13 909-353-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 REDLANDS CA
2012-08-13 909-600-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 FONTANA CA
2012-08-08 909-340-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BIGBEAR LK CA
2012-08-03 909-280-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E HIGHLAND CA
2012-07-26 909-281-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BIGBEAR CY CA
2012-07-23 909-345-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E DIAMONDBAR CA
2012-07-20 909-369-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 REDLANDS CA
2012-07-20 909-369-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 REDLANDS CA
2012-07-20 909-369-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 REDLANDS CA
2012-07-20 909-369-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 REDLANDS CA
2012-07-20 909-369-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 REDLANDS CA
2012-07-20 909-369-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 REDLANDS CA
2012-07-20 909-369-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 REDLANDS CA
2012-07-20 909-369-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 REDLANDS CA
2012-07-20 909-369-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 REDLANDS CA
2012-07-20 909-369-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 REDLANDS CA
2012-07-19 909-306-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C CHINO CA
2012-07-16 909-237-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E RIALTO CA
2012-07-16 909-295-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ONTARIO CA
2012-07-16 909-332-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E S BERNDINO CA
2012-07-16 909-670-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CLAREMONT CA
2012-07-13 909-321-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ONTARIO CA
2012-07-13 909-575-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CLAREMONT CA
2012-06-27 909-543-3XXX 3000–3999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 RIALTO CA
2012-06-25 909-237-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RIALTO CA
2012-06-25 909-341-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RIALTO CA
2012-06-22 909-283-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K REDLANDS CA
2012-06-22 909-343-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2012-06-22 909-343-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ARROWHEAD CA
2012-06-20 909-978-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K DIAMONDBAR CA
2012-06-12 909-281-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BIGBEAR CY 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.