NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 602
T-MOBILE USA, INC. 619
ONVOY, LLC - AZ 439
NEW CINGULAR WIRELESS PCS, LLC 268
BANDWIDTH.COM CLEC, LLC - AZ 238
METROPCS, INC. 229
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
2009-04-13 602-845-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2009-04-13 602-845-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2009-04-13 602-845-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2009-04-08 602-839-8XXX 8000–8999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2009-04-08 602-839-9XXX 9000–9999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2009-04-03 602-464-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF ARIZONA, LLC - AZ 7552 PHOENIX AZ
2009-03-27 602-345-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 7217 PHOENIX AZ
2009-03-27 602-345-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 7217 PHOENIX AZ
2009-03-03 602-732-7XXX 7000–7999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2009-02-25 602-759-5XXX 5000–5999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7175 PHOENIX AZ
2009-02-20 602-732-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2009-02-20 602-772-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2009-02-20 602-772-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2009-02-20 602-772-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2009-02-20 602-772-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2009-01-29 602-633-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2009-01-27 602-507-7XXX 7000–7999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2009-01-27 602-507-8XXX 8000–8999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2009-01-27 602-507-9XXX 9000–9999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2009-01-27 602-759-9XXX 9000–9999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2009-01-22 602-464-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J PHOENIX AZ
2009-01-22 602-464-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 7217 PHOENIX AZ
2009-01-22 602-464-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J PHOENIX AZ
2009-01-16 602-732-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2009-01-16 602-759-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 7217 PHOENIX AZ
2009-01-16 602-759-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 7217 PHOENIX AZ
2008-12-18 602-839-0XXX 0000–0999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2008-12-18 602-839-1XXX 1000–1999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2008-12-18 602-839-2XXX 2000–2999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2008-12-18 602-839-3XXX 3000–3999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2008-12-18 602-839-4XXX 4000–4999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2008-12-18 602-839-5XXX 5000–5999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2008-12-18 602-839-6XXX 6000–6999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2008-12-18 602-839-7XXX 7000–7999Assigned QWEST CORPORATION 9636 PHOENIX AZ
2008-11-12 602-732-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J PHOENIX AZ
2008-11-12 602-732-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J PHOENIX AZ
2008-11-11 602-772-5XXX 5000–5999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2008-11-04 602-772-3XXX 3000–3999Assigned LEVEL 3 TELECOM OF ARIZONA, LLC - AZ 7552 PHOENIX AZ
2008-11-04 602-772-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF ARIZONA, LLC - AZ 7552 PHOENIX AZ
2008-10-22 602-633-7XXX 7000–7999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2008-09-29 602-429-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 7217 PHOENIX AZ
2008-09-23 602-337-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2008-09-23 602-444-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2008-09-23 602-687-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2008-09-09 602-759-1XXX 1000–1999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7175 PHOENIX AZ
2008-09-02 602-507-4XXX 4000–4999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7175 PHOENIX AZ
2008-09-02 602-507-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7175 PHOENIX AZ
2008-09-02 602-732-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J PHOENIX AZ
2008-09-02 602-732-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J PHOENIX AZ
2008-08-29 602-845-1XXX 1000–1999Assigned GILA LOCAL EXCHANGE CARRIER, INC. - AZ 947E 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.