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
2006-08-30 480-406-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2006-08-30 480-406-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2006-08-30 480-406-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2006-08-30 480-406-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2006-08-30 480-406-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2006-08-30 480-543-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2006-08-29 480-543-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2006-08-29 480-543-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2006-08-29 480-543-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2006-08-28 480-294-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2006-08-28 480-294-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2006-08-28 480-294-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2006-08-28 480-294-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2006-08-28 480-294-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2006-08-28 480-294-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2006-08-16 480-543-1XXX 1000–1999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7175 PHOENIX AZ
2006-08-15 480-298-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2006-08-15 480-298-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2006-08-15 480-298-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2006-08-15 480-298-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2006-08-15 480-298-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2006-08-15 480-298-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2006-08-15 480-298-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ
2006-08-14 480-872-0XXX 0000–0999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2006-08-14 480-872-1XXX 1000–1999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2006-08-14 480-872-2XXX 2000–2999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2006-08-14 480-872-3XXX 3000–3999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2006-08-14 480-872-4XXX 4000–4999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2006-08-14 480-872-5XXX 5000–5999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2006-08-14 480-872-6XXX 6000–6999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2006-08-14 480-872-7XXX 7000–7999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2006-08-14 480-872-8XXX 8000–8999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2006-08-14 480-872-9XXX 9000–9999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2006-08-01 480-302-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2006-08-01 480-302-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2006-08-01 480-302-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2006-08-01 480-302-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2006-08-01 480-302-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2006-08-01 480-302-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2006-08-01 480-302-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2006-07-25 480-285-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2006-07-25 480-285-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2006-07-25 480-285-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2006-07-25 480-286-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2006-07-25 480-286-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2006-07-25 480-286-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2006-07-25 480-286-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2006-07-25 480-302-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2006-07-25 480-302-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2006-07-20 480-278-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 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.