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
2020-09-29 206-672-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-09-24 206-590-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-09-24 206-590-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-09-24 206-590-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-09-24 206-590-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-09-24 206-590-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-09-24 206-590-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-09-24 206-590-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-09-24 206-590-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-09-19 206-627-1XXX 1000–1999Assigned TELNYX LLC 073H DES MOINES WA
2020-09-04 206-558-2XXX 2000–2999Assigned VONAGE AMERICA LLC 197D BAINBDG IS WA
2020-09-04 206-558-7XXX 7000–7999Assigned VONAGE AMERICA LLC 197D BAINBDG IS WA
2020-08-27 206-627-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F DES MOINES WA
2020-08-20 206-590-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2020-08-20 206-590-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2020-08-11 206-895-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-08-11 206-895-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-08-11 206-895-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-08-11 206-895-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-08-11 206-895-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-08-11 206-895-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-08-11 206-895-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-08-11 206-895-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-08-11 206-895-8XXX 8000–8999Assigned TWILIO INTERNATIONAL, INC. 506J SEATTLE WA
2020-08-11 206-895-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2020-07-31 206-635-7XXX 7000–7999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2020-07-29 206-586-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-07-29 206-586-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-07-29 206-635-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-07-29 206-635-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-07-14 206-635-2XXX 2000–2999Assigned CSC WIRELESS, LLC 425J SEATTLE WA
2020-07-07 206-597-0XXX 0000–0999Assigned QWEST CORPORATION 9638 SEATTLE WA
2020-07-07 206-597-1XXX 1000–1999Assigned QWEST CORPORATION 9638 SEATTLE WA
2020-07-07 206-597-2XXX 2000–2999Assigned QWEST CORPORATION 9638 SEATTLE WA
2020-07-07 206-597-5XXX 5000–5999Assigned QWEST CORPORATION 9638 SEATTLE WA
2020-07-07 206-597-7XXX 7000–7999Assigned QWEST CORPORATION 9638 SEATTLE WA
2020-07-07 206-597-8XXX 8000–8999Assigned QWEST CORPORATION 9638 SEATTLE WA
2020-07-07 206-597-9XXX 9000–9999Assigned QWEST CORPORATION 9638 SEATTLE WA
2020-07-01 206-586-8XXX 8000–8999Assigned TELNYX LLC 073H SEATTLE WA
2020-07-01 206-990-0XXX 0000–0999Assigned TELNYX LLC 073H SEATTLE WA
2020-06-29 206-990-1XXX 1000–1999Assigned METROPCS, INC. 5562 SEATTLE WA
2020-06-29 206-990-3XXX 3000–3999Assigned METROPCS, INC. 5562 SEATTLE WA
2020-06-29 206-990-4XXX 4000–4999Assigned METROPCS, INC. 5562 SEATTLE WA
2020-06-23 206-629-0XXX 0000–0999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D RICHMNDBCH WA
2020-06-23 206-651-8XXX 8000–8999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D DES MOINES WA
2020-06-19 206-705-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H SEATTLE WA
2020-06-19 206-705-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SEATTLE WA
2020-06-19 206-705-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H SEATTLE WA
2020-06-19 206-990-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H SEATTLE WA
2020-06-18 206-259-4XXX 4000–4999Assigned ELTOPIA COMMUNICATIONS, LLC - WA 663D VASHON 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.