NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

5 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 206
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 4
ACCELERATE NETWORKS LLC 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
2014-10-10 206-488-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BAINBDG IS WA
2014-10-10 206-488-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BAINBDG IS WA
2014-10-10 206-800-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F RICHMNDBCH WA
2014-10-10 206-886-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2014-10-10 206-886-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2014-10-10 206-886-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2014-10-09 206-886-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2014-10-03 206-319-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BAINBDG IS WA
2014-10-03 206-319-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BAINBDG IS WA
2014-10-02 206-429-0XXX 0000–0999Assigned METROPCS, INC. 5562 DES MOINES WA
2014-10-02 206-429-1XXX 1000–1999Assigned METROPCS, INC. 5562 DES MOINES WA
2014-10-02 206-866-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E BAINBDG IS WA
2014-10-01 206-429-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E DES MOINES WA
2014-10-01 206-429-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E DES MOINES WA
2014-10-01 206-886-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SEATTLE WA
2014-09-26 206-886-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SEATTLE WA
2014-09-26 206-886-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SEATTLE WA
2014-09-26 206-886-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SEATTLE WA
2014-09-26 206-886-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SEATTLE WA
2014-09-26 206-886-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SEATTLE WA
2014-09-24 206-476-0XXX 0000–0999Assigned METROPCS, INC. 5562 SEATTLE WA
2014-09-24 206-476-1XXX 1000–1999Assigned METROPCS, INC. 5562 SEATTLE WA
2014-09-24 206-476-2XXX 2000–2999Assigned METROPCS, INC. 5562 SEATTLE WA
2014-09-24 206-476-3XXX 3000–3999Assigned METROPCS, INC. 5562 SEATTLE WA
2014-09-24 206-476-9XXX 9000–9999Assigned METROPCS, INC. 5562 SEATTLE WA
2014-09-18 206-379-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2014-09-18 206-379-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2014-09-18 206-379-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2014-09-18 206-379-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2014-09-18 206-379-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2014-09-18 206-379-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2014-09-12 206-471-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2014-09-10 206-468-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2014-09-10 206-468-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2014-09-10 206-468-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2014-09-10 206-468-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2014-09-10 206-468-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2014-09-10 206-468-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2014-09-10 206-468-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2014-09-10 206-468-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2014-09-10 206-468-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2014-09-10 206-468-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2014-08-29 206-408-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VASHON WA
2014-08-22 206-471-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2014-08-22 206-471-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2014-08-22 206-471-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2014-08-22 206-939-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J SEATTLE WA
2014-08-20 206-201-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BAINBDG IS WA
2014-08-20 206-201-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BAINBDG IS WA
2014-08-20 206-317-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BAINBDG IS WA

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.