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
2008-01-28 206-708-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2008-01-28 206-777-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2008-01-08 206-259-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E VASHON WA
2008-01-08 206-653-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DES MOINES WA
2007-12-18 206-462-7XXX 7000–7999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
2007-12-05 206-462-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
2007-11-21 206-518-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-11-21 206-518-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-11-21 206-518-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2007-11-08 206-651-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA 7274 DES MOINES WA
2007-10-26 206-462-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2007-10-26 206-462-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2007-10-26 206-462-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2007-10-26 206-462-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2007-10-17 206-289-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 RICHMNDBCH WA
2007-10-17 206-453-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2007-09-27 206-462-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2007-09-26 206-453-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2007-09-26 206-651-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DES MOINES WA
2007-09-18 206-455-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2007-09-18 206-455-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2007-09-18 206-455-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2007-09-18 206-455-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2007-09-18 206-518-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2007-09-18 206-518-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2007-09-18 206-518-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2007-09-18 206-518-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2007-09-18 206-518-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2007-09-14 206-249-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J DES MOINES WA
2007-09-14 206-892-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2007-09-13 206-453-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2007-08-27 206-518-5XXX 5000–5999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
2007-08-27 206-518-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
2007-08-17 206-327-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2007-08-17 206-453-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2007-08-17 206-453-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2007-08-17 206-453-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2007-08-15 206-453-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-08-15 206-453-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-08-07 206-708-8XXX 8000–8999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
2007-07-19 206-307-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-07-19 206-307-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-07-19 206-327-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-07-19 206-327-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-07-19 206-327-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2007-07-17 206-304-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DES MOINES WA
2007-07-11 206-327-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2007-07-11 206-327-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2007-07-11 206-327-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2007-06-29 206-473-7XXX 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.