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
2013-10-22 206-348-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2013-10-22 206-348-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2013-10-22 206-348-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2013-10-17 206-212-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F DES MOINES WA
2013-10-17 206-578-6XXX 6000–6999Assigned METROPCS, INC. 5562 DES MOINES WA
2013-10-17 206-578-7XXX 7000–7999Assigned METROPCS, INC. 5562 DES MOINES WA
2013-10-17 206-578-8XXX 8000–8999Assigned METROPCS, INC. 5562 DES MOINES WA
2013-10-15 206-317-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F BAINBDG IS WA
2013-10-15 206-745-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F RICHMNDBCH WA
2013-10-14 206-981-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2013-10-14 206-981-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2013-10-14 206-981-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2013-10-14 206-981-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2013-10-11 206-582-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J SEATTLE WA
2013-10-09 206-981-0XXX 0000–0999Assigned METROPCS, INC. 5562 SEATTLE WA
2013-10-09 206-981-1XXX 1000–1999Assigned METROPCS, INC. 5562 SEATTLE WA
2013-09-26 206-981-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2013-09-26 206-981-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2013-09-26 206-981-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2013-08-30 206-745-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E RICHMNDBCH WA
2013-08-29 206-582-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2013-08-29 206-582-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E SEATTLE WA
2013-08-23 206-582-0XXX 0000–0999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SEATTLE WA
2013-08-20 206-582-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2013-08-20 206-582-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2013-08-16 206-582-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2013-08-16 206-582-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2013-08-13 206-305-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2013-08-13 206-305-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2013-08-13 206-305-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2013-08-13 206-305-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2013-08-13 206-305-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2013-08-13 206-305-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2013-08-13 206-305-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2013-08-13 206-735-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2013-08-13 206-858-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2013-08-13 206-858-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2013-08-05 206-317-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J BAINBDG IS WA
2013-08-01 206-981-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2013-07-30 206-582-3XXX 3000–3999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
2013-07-30 206-582-4XXX 4000–4999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
2013-07-26 206-258-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2013-07-25 206-602-1XXX 1000–1999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
2013-07-24 206-602-0XXX 0000–0999Assigned METROPCS, INC. 5562 SEATTLE WA
2013-07-18 206-305-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2013-07-18 206-305-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2013-07-18 206-305-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2013-07-15 206-258-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2013-07-15 206-258-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2013-07-15 206-549-8XXX 8000–8999Assigned 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.