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
2019-03-06 480-651-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2019-03-06 480-651-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2019-03-06 480-651-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2019-02-13 480-546-1XXX 1000–1999Assigned METROPCS, INC. 5562 PHOENIX AZ
2019-02-11 480-651-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2019-02-11 480-651-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2019-02-11 480-651-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2019-01-29 480-651-8XXX 8000–8999Assigned PEERLESS NETWORK OF ARIZONA, LLC - AZ 579F PHOENIX AZ
2019-01-23 480-549-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2019-01-23 480-549-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2019-01-23 480-549-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2019-01-23 480-549-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2019-01-23 480-549-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2019-01-23 480-549-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2019-01-23 480-549-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2019-01-23 480-549-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2019-01-23 480-549-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2019-01-23 480-651-1XXX 1000–1999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2019-01-23 480-651-9XXX 9000–9999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2019-01-15 480-546-0XXX 0000–0999Assigned METROPCS, INC. 5562 PHOENIX AZ
2019-01-15 480-546-9XXX 9000–9999Assigned METROPCS, INC. 5562 PHOENIX AZ
2019-01-10 480-590-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2019-01-10 480-590-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2019-01-10 480-590-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2019-01-10 480-590-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2019-01-10 480-590-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2019-01-10 480-590-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2019-01-10 480-590-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2019-01-10 480-590-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2019-01-10 480-590-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2019-01-10 480-590-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2019-01-09 480-569-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 PHOENIX AZ
2019-01-09 480-936-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 PHOENIX AZ
2018-12-31 480-569-0XXX 0000–0999Assigned METROPCS, INC. 5562 PHOENIX AZ
2018-12-31 480-977-7XXX 7000–7999Assigned METROPCS, INC. 5562 PHOENIX AZ
2018-12-13 480-569-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2018-12-13 480-569-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2018-12-13 480-569-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2018-12-13 480-569-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2018-12-04 480-569-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 PHOENIX AZ
2018-12-04 480-569-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - AZ 3285 PHOENIX AZ
2018-11-30 480-877-9XXX 9000–9999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2018-11-16 480-877-8XXX 8000–8999Assigned MCC TELEPHONY LLC 593K PHOENIX AZ
2018-11-12 480-569-1XXX 1000–1999Assigned PEERLESS NETWORK OF ARIZONA, LLC - AZ 579F PHOENIX AZ
2018-11-07 480-569-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2018-11-05 480-542-0XXX 0000–0999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2018-11-05 480-542-1XXX 1000–1999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2018-11-05 480-542-2XXX 2000–2999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2018-11-05 480-542-3XXX 3000–3999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2018-11-05 480-542-4XXX 4000–4999Assigned ONVOY, LLC - AZ 630E 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.