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
2016-01-22 206-413-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2016-01-22 206-413-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2016-01-22 206-413-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2016-01-22 206-413-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2016-01-21 206-482-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SEATTLE WA
2016-01-21 206-482-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SEATTLE WA
2016-01-21 206-482-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SEATTLE WA
2016-01-21 206-482-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SEATTLE WA
2016-01-15 206-413-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SEATTLE WA
2016-01-15 206-413-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SEATTLE WA
2016-01-15 206-823-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BAINBDG IS WA
2016-01-15 206-899-2XXX 2000–2999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BAINBDG IS WA
2016-01-14 206-800-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F RICHMNDBCH WA
2016-01-14 206-800-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F RICHMNDBCH WA
2016-01-14 206-800-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F RICHMNDBCH WA
2016-01-13 206-775-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2016-01-13 206-775-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2016-01-13 206-775-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2016-01-13 206-775-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2016-01-13 206-966-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DES MOINES WA
2016-01-11 206-775-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2016-01-11 206-775-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2015-12-21 206-492-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2015-12-16 206-966-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DES MOINES WA
2015-11-30 206-492-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2015-11-30 206-775-0XXX 0000–0999Assigned METROPCS, INC. 5562 SEATTLE WA
2015-11-30 206-775-1XXX 1000–1999Assigned METROPCS, INC. 5562 SEATTLE WA
2015-11-25 206-775-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2015-11-25 206-775-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2015-11-23 206-539-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2015-11-23 206-539-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2015-11-23 206-539-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2015-11-19 206-207-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2015-11-19 206-207-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2015-11-19 206-207-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2015-11-19 206-207-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2015-11-19 206-207-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2015-11-19 206-207-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2015-11-19 206-207-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2015-11-19 206-207-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2015-11-19 206-207-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2015-11-19 206-207-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2015-11-16 206-966-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E DES MOINES WA
2015-11-13 206-899-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 BAINBDG IS WA
2015-11-12 206-899-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BAINBDG IS WA
2015-11-10 206-492-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2015-11-10 206-492-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2015-11-10 206-960-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2015-11-10 206-960-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2015-11-10 206-960-2XXX 2000–2999Assigned 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.