NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

1 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
2015-02-03 480-669-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2015-02-03 480-669-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2015-02-03 480-669-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2015-02-03 480-669-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2015-02-03 480-669-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2015-02-03 480-669-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2015-01-26 480-765-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 7217 PHOENIX AZ
2015-01-26 480-765-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 7217 PHOENIX AZ
2015-01-23 480-579-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2015-01-16 480-579-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2015-01-12 480-494-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2015-01-12 480-494-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2015-01-12 480-494-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2015-01-12 480-494-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2015-01-12 480-494-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2015-01-12 480-494-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PHOENIX AZ
2015-01-09 480-579-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2015-01-09 480-579-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2015-01-09 480-579-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2015-01-09 480-579-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2015-01-09 480-579-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2015-01-09 480-579-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2014-12-29 480-579-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2014-12-23 480-494-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J PHOENIX AZ
2014-12-23 480-494-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PHOENIX AZ
2014-12-11 480-494-2XXX 2000–2999Assigned RE-INVENT TELECOM, LLC - AZ 663G PHOENIX AZ
2014-12-08 480-494-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AZ 7217 PHOENIX AZ
2014-11-14 480-418-4XXX 4000–4999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2014-11-14 480-418-5XXX 5000–5999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2014-11-14 480-418-6XXX 6000–6999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2014-11-14 480-418-7XXX 7000–7999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2014-11-14 480-418-8XXX 8000–8999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2014-11-14 480-418-9XXX 9000–9999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2014-11-14 480-739-3XXX 3000–3999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2014-11-14 480-787-0XXX 0000–0999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2014-11-10 480-418-0XXX 0000–0999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2014-11-10 480-418-1XXX 1000–1999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2014-11-10 480-418-2XXX 2000–2999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2014-11-10 480-418-3XXX 3000–3999Assigned ONVOY, LLC - AZ 630E PHOENIX AZ
2014-11-04 480-740-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2014-11-04 480-740-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2014-11-04 480-740-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2014-11-04 480-740-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2014-11-04 480-740-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2014-11-04 480-740-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2014-11-04 480-740-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2014-11-04 480-740-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2014-11-04 480-740-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2014-11-04 480-740-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PHOENIX AZ
2014-10-21 480-868-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ 6572 PHOENIX AZ

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.