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
2020-03-26 206-561-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-03-26 206-561-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-03-26 206-627-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DES MOINES WA
2020-03-24 206-742-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DES MOINES WA
2020-03-23 206-888-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-03-23 206-888-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-03-23 206-888-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-03-17 206-888-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2020-02-26 206-888-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2020-02-14 206-888-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2020-01-31 206-580-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-01-31 206-580-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-01-31 206-580-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-01-31 206-580-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-01-31 206-580-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-01-31 206-666-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-01-31 206-666-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-01-31 206-666-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-01-31 206-666-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2020-01-31 206-888-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-12-18 206-666-5XXX 5000–5999Assigned METROPCS, INC. 5562 SEATTLE WA
2019-12-18 206-806-3XXX 3000–3999Assigned METROPCS, INC. 5562 SEATTLE WA
2019-12-17 206-580-4XXX 4000–4999Assigned TELNYX LLC 073H SEATTLE WA
2019-12-17 206-600-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-12-17 206-600-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-12-17 206-600-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-12-17 206-600-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-12-17 206-600-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-12-17 206-600-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-12-17 206-600-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-12-17 206-666-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-12-17 206-666-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-11-22 206-533-3XXX 3000–3999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F RICHMNDBCH WA
2019-11-22 206-580-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2019-11-22 206-580-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2019-11-11 206-572-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-11-11 206-572-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-11-11 206-572-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-11-11 206-572-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-11-11 206-572-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-11-11 206-572-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-11-11 206-572-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-11-11 206-572-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-11-11 206-572-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-11-11 206-572-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-11-04 206-580-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2019-10-24 206-514-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-10-24 206-514-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-10-24 206-514-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2019-10-24 206-514-3XXX 3000–3999Assigned 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.