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
2020-06-15 206-614-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-06-15 206-614-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-06-15 206-614-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-06-15 206-614-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-06-15 206-614-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-06-15 206-614-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-06-15 206-614-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-06-15 206-614-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-06-15 206-614-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-06-15 206-614-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-06-08 206-580-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2020-06-08 206-705-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2020-05-29 206-558-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E BAINBDG IS WA
2020-05-29 206-558-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E BAINBDG IS WA
2020-05-29 206-589-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E RICHMNDBCH WA
2020-05-29 206-589-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E RICHMNDBCH WA
2020-05-26 206-567-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E VASHON WA
2020-05-26 206-594-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-05-26 206-594-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-05-26 206-594-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-05-26 206-594-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-05-26 206-594-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-05-26 206-594-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-05-26 206-594-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-05-26 206-594-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-05-26 206-594-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-05-26 206-627-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E DES MOINES WA
2020-05-26 206-627-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E DES MOINES WA
2020-05-26 206-705-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-05-18 206-627-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F DES MOINES WA
2020-05-04 206-990-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 SEATTLE WA
2020-05-04 206-990-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 SEATTLE WA
2020-05-04 206-990-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 SEATTLE WA
2020-05-04 206-990-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 SEATTLE WA
2020-05-04 206-990-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 SEATTLE WA
2020-04-22 206-594-1XXX 1000–1999Assigned NUSO, LLC 478J SEATTLE WA
2020-04-15 206-705-0XXX 0000–0999Assigned METROPCS, INC. 5562 SEATTLE WA
2020-04-07 206-593-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-04-06 206-705-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2020-04-06 206-705-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2020-04-06 206-705-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2020-04-02 206-289-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F RICHMNDBCH WA
2020-04-01 206-705-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J SEATTLE WA
2020-03-26 206-561-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-03-26 206-561-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-03-26 206-561-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-03-26 206-561-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-03-26 206-561-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-03-26 206-561-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-03-26 206-561-6XXX 6000–6999Assigned 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.