NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2006-11-07 206-962-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2006-10-24 206-694-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SEATTLE WA
2006-10-24 206-834-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SEATTLE WA
2006-10-16 206-420-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-10-16 206-434-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-10-16 206-876-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-10-13 206-451-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E BAINBDG IS WA
2006-10-10 206-473-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 SEATTLE WA
2006-10-10 206-473-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 SEATTLE WA
2006-10-10 206-473-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 SEATTLE WA
2006-10-10 206-473-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 SEATTLE WA
2006-09-29 206-965-1XXX 1000–1999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
2006-09-27 206-451-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E BAINBDG IS WA
2006-09-21 206-801-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E RICHMNDBCH WA
2006-09-17 206-613-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-09-17 206-676-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-09-17 206-861-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-09-13 206-816-3XXX 3000–3999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
2006-09-13 206-816-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA
2006-09-07 206-420-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2006-09-07 206-420-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2006-09-07 206-420-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2006-09-07 206-420-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2006-09-07 206-420-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2006-09-07 206-420-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J SEATTLE WA
2006-09-07 206-567-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 VASHON WA
2006-09-01 206-429-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J DES MOINES WA
2006-09-01 206-429-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J DES MOINES WA
2006-08-22 206-434-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-08-22 206-434-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-08-22 206-434-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-08-22 206-434-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-08-22 206-434-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-08-22 206-436-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SEATTLE WA
2006-08-15 206-450-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2006-08-15 206-450-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2006-08-15 206-450-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2006-08-15 206-450-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2006-08-15 206-450-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2006-08-15 206-450-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2006-08-15 206-450-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2006-08-15 206-450-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2006-08-15 206-450-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2006-08-15 206-450-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SEATTLE WA
2006-08-08 206-926-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2006-08-08 206-926-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2006-08-08 206-971-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2006-08-08 206-973-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SEATTLE WA
2006-08-01 206-866-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 BAINBDG IS WA
2006-07-25 206-696-7XXX 7000–7999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SEATTLE WA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.