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
2016-11-28 206-502-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BAINBDG IS WA
2016-11-28 206-502-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BAINBDG IS WA
2016-11-22 206-460-2XXX 2000–2999Assigned METROPCS, INC. 5562 DES MOINES WA
2016-11-21 206-503-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2016-11-21 206-503-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2016-11-21 206-503-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2016-11-21 206-503-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2016-11-16 206-502-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F BAINBDG IS WA
2016-11-16 206-785-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2016-11-16 206-785-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2016-11-16 206-929-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 DES MOINES WA
2016-11-07 206-731-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SEATTLE WA
2016-10-31 206-785-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SEATTLE WA
2016-10-26 206-785-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2016-10-26 206-785-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2016-10-26 206-785-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SEATTLE WA
2016-10-21 206-785-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2016-10-21 206-785-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2016-10-21 206-785-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2016-10-17 206-565-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BAINBDG IS WA
2016-10-14 206-698-0XXX 0000–0999Assigned METROPCS, INC. 5562 SEATTLE WA
2016-10-14 206-698-1XXX 1000–1999Assigned METROPCS, INC. 5562 SEATTLE WA
2016-10-14 206-773-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2016-10-14 206-773-1XXX 1000–1999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2016-10-14 206-773-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2016-10-14 206-773-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2016-10-14 206-773-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2016-10-14 206-773-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2016-09-16 206-376-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2016-09-16 206-376-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2016-09-16 206-376-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2016-09-16 206-376-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2016-09-16 206-376-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2016-09-16 206-698-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SEATTLE WA
2016-09-16 206-698-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SEATTLE WA
2016-09-16 206-698-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SEATTLE WA
2016-09-14 206-376-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2016-09-14 206-376-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2016-09-14 206-573-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2016-09-14 206-573-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2016-09-14 206-773-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2016-09-14 206-773-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2016-09-14 206-773-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2016-09-08 206-401-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F RICHMNDBCH WA
2016-09-08 206-573-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J SEATTLE WA
2016-09-08 206-785-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2016-08-25 206-565-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BAINBDG IS WA
2016-08-22 206-573-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2016-08-22 206-573-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2016-08-22 206-573-2XXX 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.