NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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 480
TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 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
2008-07-28 480-760-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2008-07-08 480-347-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 PHOENIX AZ
2008-07-08 480-347-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 PHOENIX AZ
2008-07-03 480-347-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2008-07-03 480-347-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2008-07-01 480-553-8XXX 8000–8999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2008-07-01 480-553-9XXX 9000–9999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2008-06-25 480-270-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2008-06-25 480-347-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2008-06-25 480-347-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2008-06-25 480-384-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2008-06-25 480-394-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2008-06-25 480-455-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2008-06-25 480-455-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2008-06-25 480-455-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2008-06-25 480-455-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2008-06-25 480-455-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2008-06-23 480-455-1XXX 1000–1999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7175 PHOENIX AZ
2008-06-20 480-270-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2008-06-20 480-270-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2008-06-10 480-463-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2008-06-10 480-463-1XXX 1000–1999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2008-06-10 480-463-3XXX 3000–3999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2008-06-10 480-463-5XXX 5000–5999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2008-06-10 480-463-6XXX 6000–6999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2008-06-10 480-463-7XXX 7000–7999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2008-06-10 480-463-9XXX 9000–9999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2008-06-04 480-528-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2008-06-04 480-528-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2008-06-04 480-528-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2008-06-04 480-528-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2008-06-04 480-528-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2008-06-04 480-528-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2008-06-04 480-528-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2008-06-04 480-528-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2008-06-04 480-528-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2008-06-02 480-553-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2008-06-02 480-553-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2008-06-02 480-553-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2008-06-02 480-553-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2008-06-02 480-553-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2008-05-30 480-270-3XXX 3000–3999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7175 PHOENIX AZ
2008-05-30 480-347-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2008-05-30 480-347-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2008-05-30 480-347-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2008-05-30 480-347-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2008-05-30 480-433-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2008-05-28 480-463-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 PHOENIX AZ
2008-05-27 480-270-5XXX 5000–5999Assigned SADDLEBACK COMMUNICATIONS COMPANY - AZ 7991 PHOENIX AZ
2008-05-27 480-270-6XXX 6000–6999Assigned SADDLEBACK COMMUNICATIONS COMPANY - AZ 7991 PHOENIX AZ

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.