NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

5 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 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
2007-03-08 206-834-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-03-08 206-883-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-02-16 206-816-7XXX 7000–7999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
2007-02-12 206-766-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-02-12 206-805-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-02-06 206-408-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E VASHON WA
2007-02-01 206-691-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2007-01-25 206-861-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-01-25 206-902-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-01-25 206-913-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-01-19 206-658-2XXX 2000–2999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
2007-01-11 206-405-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-01-11 206-428-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-01-11 206-501-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-01-11 206-548-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-01-11 206-554-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-12-15 206-548-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2006-12-14 206-422-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-12-14 206-422-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-12-14 206-422-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-12-14 206-422-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-12-14 206-422-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-12-14 206-422-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-12-14 206-422-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-12-05 206-304-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DES MOINES WA
2006-11-17 206-497-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E RICHMNDBCH WA
2006-11-17 206-497-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E RICHMNDBCH WA
2006-11-15 206-529-3XXX 3000–3999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
2006-11-10 206-607-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2006-11-10 206-607-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2006-11-10 206-607-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2006-11-10 206-701-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2006-11-10 206-701-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2006-11-10 206-701-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2006-11-10 206-792-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2006-11-10 206-792-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2006-11-10 206-792-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2006-11-10 206-923-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2006-11-10 206-923-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2006-11-10 206-925-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2006-11-07 206-418-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2006-11-07 206-418-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2006-11-07 206-437-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2006-11-07 206-473-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2006-11-07 206-473-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2006-11-07 206-473-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2006-11-07 206-832-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-11-07 206-832-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-11-07 206-832-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-11-07 206-962-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA

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.