NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

1 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 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
2004-08-25 480-773-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-08-25 480-773-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-08-25 480-773-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-08-25 480-773-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-08-25 480-773-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-08-25 480-773-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-08-25 480-773-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-08-25 480-907-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-08-24 480-907-1XXX 1000–1999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2004-08-24 480-907-2XXX 2000–2999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2004-08-24 480-907-3XXX 3000–3999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2004-08-17 480-248-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2004-08-17 480-248-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2004-08-17 480-248-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2004-08-17 480-704-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2004-08-10 480-248-0XXX 0000–0999Assigned METROPCS, INC. 5562 PHOENIX AZ
2004-08-02 480-773-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2004-08-02 480-773-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2004-07-22 480-794-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2004-07-22 480-840-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2004-07-15 480-768-8XXX 8000–8999Assigned METROPCS, INC. 5562 PHOENIX AZ
2004-07-07 480-635-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2004-07-07 480-636-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2004-07-07 480-677-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2004-06-30 480-516-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-06-30 480-648-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-06-25 480-516-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-06-25 480-516-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-06-25 480-516-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-06-25 480-516-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-06-25 480-516-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-06-25 480-516-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-06-25 480-516-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-06-25 480-516-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-06-25 480-648-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-06-07 480-612-0XXX 0000–0999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2004-06-02 480-365-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2004-06-02 480-445-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2004-06-02 480-467-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2004-06-02 480-471-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2004-06-02 480-862-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2004-06-02 480-862-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2004-06-02 480-889-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2004-06-01 480-350-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2004-05-28 480-323-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-05-28 480-323-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-05-28 480-323-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-05-28 480-323-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-05-28 480-323-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-05-28 480-375-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ

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.