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
2021-06-16 206-670-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2021-06-04 206-844-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-06-04 206-844-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-06-04 206-844-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-06-04 206-844-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-06-04 206-844-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-06-04 206-844-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-06-04 206-844-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-06-04 206-844-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-06-04 206-844-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-06-04 206-844-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-05-26 206-603-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E VASHON WA
2021-05-26 206-603-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E VASHON WA
2021-05-25 206-589-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E RICHMNDBCH WA
2021-05-25 206-589-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E RICHMNDBCH WA
2021-05-25 206-589-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E RICHMNDBCH WA
2021-05-24 206-635-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2021-05-24 206-635-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2021-05-24 206-635-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2021-05-24 206-638-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2021-05-24 206-638-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2021-05-24 206-638-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2021-05-24 206-638-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2021-05-24 206-638-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2021-05-24 206-670-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2021-05-17 206-603-5XXX 5000–5999Assigned COMMIO, LLC 939H VASHON WA
2021-05-17 206-603-6XXX 6000–6999Assigned COMMIO, LLC 939H VASHON WA
2021-05-17 206-603-7XXX 7000–7999Assigned COMMIO, LLC 939H VASHON WA
2021-05-17 206-603-8XXX 8000–8999Assigned COMMIO, LLC 939H VASHON WA
2021-05-17 206-603-9XXX 9000–9999Assigned COMMIO, LLC 939H VASHON WA
2021-05-15 206-635-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2021-04-22 206-638-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H SEATTLE WA
2021-04-22 206-638-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H SEATTLE WA
2021-04-22 206-638-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H SEATTLE WA
2021-04-22 206-638-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SEATTLE WA
2021-04-19 206-635-3XXX 3000–3999Assigned TELNYX LLC 073H SEATTLE WA
2021-04-06 206-670-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2021-04-05 206-752-0XXX 0000–0999Assigned SKYE TELECOM LLC DBA SKYETEL 622J SEATTLE WA
2021-03-31 206-690-0XXX 0000–0999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-03-31 206-690-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-03-31 206-690-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-03-31 206-690-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-03-31 206-690-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-03-31 206-690-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-03-31 206-690-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-03-31 206-690-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-03-31 206-690-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-03-31 206-690-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-03-29 206-970-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2021-03-29 206-970-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E 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.