NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 714
NEW CINGULAR WIRELESS PCS, LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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
2005-01-11 714-677-8XXX 8000–8999Assigned TWILIO INTERNATIONAL, INC. 506J WESTMINSTR CA
2005-01-11 714-677-9XXX 9000–9999Assigned IP HORIZON LLC 515J WESTMINSTR CA
2005-01-10 714-500-7XXX 7000–7999Assigned TWILIO INTERNATIONAL, INC. 506J HUNTITNBCH CA
2005-01-10 714-500-8XXX 8000–8999Assigned IP HORIZON LLC 515J HUNTITNBCH CA
2005-01-07 714-677-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 WESTMINSTR CA
2005-01-06 714-422-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2005-01-06 714-457-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2005-01-06 714-467-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GARDEN GRV CA
2005-01-06 714-470-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2005-01-06 714-618-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2005-01-06 714-881-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D SANTA ANA CA
2005-01-04 714-232-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BUENA PARK CA
2005-01-04 714-277-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SANTA ANA CA
2005-01-04 714-277-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SANTA ANA CA
2004-12-29 714-723-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 CYPRESS CA
2004-12-28 714-913-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D SANTA ANA CA
2004-12-22 714-280-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ORANGE CA
2004-12-22 714-280-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ORANGE CA
2004-12-17 714-243-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CYPRESS CA
2004-12-17 714-252-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CYPRESS CA
2004-12-17 714-261-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 YORBALINDA CA
2004-12-15 714-386-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J YORBALINDA CA
2004-12-15 714-450-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J ORANGE CA
2004-12-14 714-408-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ANAHEIM CA
2004-12-14 714-408-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ANAHEIM CA
2004-12-14 714-414-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2004-12-14 714-414-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2004-12-13 714-252-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CYPRESS CA
2004-12-10 714-450-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C ORANGE CA
2004-12-09 714-902-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WESTMINSTR CA
2004-12-09 714-933-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WESTMINSTR CA
2004-12-09 714-933-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WESTMINSTR CA
2004-12-09 714-933-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WESTMINSTR CA
2004-12-03 714-455-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 YORBALINDA CA
2004-12-03 714-455-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 YORBALINDA CA
2004-11-24 714-913-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D SANTA ANA CA
2004-11-24 714-913-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D SANTA ANA CA
2004-11-19 714-253-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 FULLERTON CA
2004-11-19 714-443-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BUENA PARK CA
2004-11-19 714-443-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BUENA PARK CA
2004-11-19 714-494-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BREA CA
2004-11-19 714-684-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BUENA PARK CA
2004-11-19 714-705-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 GARDEN GRV CA
2004-11-11 714-391-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2004-11-11 714-598-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ANAHEIM CA
2004-11-09 714-889-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WESTMINSTR CA
2004-11-09 714-889-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 WESTMINSTR CA
2004-11-05 714-482-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BREA CA
2004-11-04 714-475-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J HUNTITNBCH CA
2004-11-03 714-280-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ORANGE 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.