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
2008-06-12 206-259-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E VASHON WA
2008-06-12 206-567-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E VASHON WA
2008-06-12 206-567-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E VASHON WA
2008-06-04 206-462-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2008-06-02 206-452-8XXX 8000–8999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
2008-05-22 206-402-0XXX 0000–0999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D SEATTLE WA
2008-05-21 206-452-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2008-05-21 206-452-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2008-05-21 206-452-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2008-05-21 206-452-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2008-05-21 206-452-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2008-05-21 206-452-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2008-05-21 206-452-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2008-05-16 206-452-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2008-05-16 206-588-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2008-05-16 206-588-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2008-05-16 206-588-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2008-05-14 206-458-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2008-05-14 206-458-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2008-05-14 206-458-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2008-05-14 206-458-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2008-05-14 206-458-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2008-05-14 206-458-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2008-05-14 206-458-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2008-05-07 206-319-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 BAINBDG IS WA
2008-05-06 206-629-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 RICHMNDBCH WA
2008-05-01 206-453-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2008-05-01 206-455-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2008-04-28 206-455-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2008-04-28 206-455-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2008-04-24 206-249-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DES MOINES WA
2008-04-24 206-455-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2008-04-18 206-455-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2008-04-09 206-629-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J RICHMNDBCH WA
2008-04-02 206-327-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2008-04-02 206-327-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2008-04-02 206-455-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2008-03-13 206-327-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2008-02-22 206-307-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2008-02-22 206-307-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2008-02-22 206-307-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2008-02-22 206-307-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2008-02-22 206-307-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2008-02-22 206-307-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2008-02-08 206-569-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 RICHMNDBCH WA
2008-01-29 206-631-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2008-01-29 206-631-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2008-01-28 206-446-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2008-01-28 206-462-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2008-01-28 206-462-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE 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.