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
2004-11-18 480-247-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2004-11-18 480-248-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2004-11-18 480-248-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2004-11-18 480-248-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2004-11-18 480-248-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2004-11-18 480-766-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-11-18 480-766-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-11-03 480-247-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-11-03 480-247-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-10-28 480-474-7XXX 7000–7999Assigned METROPCS, INC. 5562 PHOENIX AZ
2004-10-26 480-766-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 7217 PHOENIX AZ
2004-10-26 480-766-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 7217 PHOENIX AZ
2004-10-26 480-766-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 7217 PHOENIX AZ
2004-10-20 480-766-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2004-10-20 480-768-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2004-10-20 480-785-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2004-10-20 480-812-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2004-10-20 480-882-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2004-10-14 480-437-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-10-14 480-512-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-10-14 480-907-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-10-14 480-907-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-10-13 480-262-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-10-13 480-262-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-10-13 480-262-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-10-13 480-262-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-10-13 480-766-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-10-13 480-766-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-10-13 480-766-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-09-24 480-766-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2004-09-20 480-262-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2004-09-20 480-262-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2004-09-20 480-262-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2004-09-16 480-275-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2004-09-16 480-275-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2004-09-16 480-275-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2004-09-16 480-275-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2004-09-16 480-275-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2004-09-16 480-275-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2004-09-16 480-275-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2004-09-16 480-907-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2004-09-16 480-907-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2004-09-16 480-907-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2004-09-07 480-262-2XXX 2000–2999Assigned METROPCS, INC. 5562 PHOENIX AZ
2004-09-01 480-262-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-09-01 480-262-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2004-08-26 480-275-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-08-26 480-275-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-08-26 480-275-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2004-08-25 480-773-0XXX 0000–0999Assigned 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.