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
2016-05-24 480-482-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 PHOENIX AZ
2016-05-20 480-417-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J PHOENIX AZ
2016-05-20 480-417-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J PHOENIX AZ
2016-05-20 480-482-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2016-05-19 480-482-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J PHOENIX AZ
2016-05-19 480-482-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J PHOENIX AZ
2016-05-18 480-482-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2016-05-18 480-482-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2016-04-19 480-407-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2016-04-19 480-407-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2016-04-19 480-407-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2016-04-06 480-407-6XXX 6000–6999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2016-04-04 480-410-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2016-04-04 480-410-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2016-04-04 480-410-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2016-04-04 480-410-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2016-04-04 480-410-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2016-04-04 480-410-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2016-04-04 480-410-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2016-04-04 480-410-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2016-03-30 480-407-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 PHOENIX AZ
2016-03-30 480-407-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 PHOENIX AZ
2016-03-30 480-407-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 PHOENIX AZ
2016-03-30 480-407-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 PHOENIX AZ
2016-03-30 480-407-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 PHOENIX AZ
2016-03-29 480-410-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2016-03-29 480-410-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2016-03-25 480-407-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2016-03-17 480-781-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2016-03-17 480-930-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2016-03-17 480-930-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2016-03-17 480-930-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2016-03-17 480-930-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2016-03-17 480-930-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2016-03-17 480-930-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2016-03-17 480-930-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2016-03-17 480-930-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2016-03-17 480-930-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2016-03-11 480-781-4XXX 4000–4999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2016-03-11 480-781-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J PHOENIX AZ
2016-03-08 480-930-4XXX 4000–4999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2016-03-07 480-781-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J PHOENIX AZ
2016-03-03 480-781-1XXX 1000–1999Assigned METROPCS, INC. 5562 PHOENIX AZ
2016-03-03 480-781-7XXX 7000–7999Assigned METROPCS, INC. 5562 PHOENIX AZ
2016-03-03 480-781-8XXX 8000–8999Assigned METROPCS, INC. 5562 PHOENIX AZ
2016-03-03 480-781-9XXX 9000–9999Assigned METROPCS, INC. 5562 PHOENIX AZ
2016-02-19 480-781-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2016-02-18 480-566-0XXX 0000–0999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2016-02-18 480-566-9XXX 9000–9999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2016-02-03 480-566-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 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.