NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

2 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 425
NEW CINGULAR WIRELESS PCS, LLC 2
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
2005-07-11 425-293-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 EVERETT WA
2005-07-11 425-293-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 EVERETT WA
2005-07-11 425-293-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 EVERETT WA
2005-07-11 425-301-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BELLEVUE WA
2005-07-11 425-301-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BELLEVUE WA
2005-07-11 425-301-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BELLEVUE WA
2005-07-11 425-463-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BELLEVUE WA
2005-07-11 425-463-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BELLEVUE WA
2005-07-07 425-213-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BELLEVUE WA
2005-07-07 425-213-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BELLEVUE WA
2005-06-21 425-412-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HALLS LAKE WA
2005-06-21 425-412-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HALLS LAKE WA
2005-06-21 425-412-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HALLS LAKE WA
2005-06-21 425-412-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HALLS LAKE WA
2005-06-21 425-526-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ISSAQUAH WA
2005-06-21 425-526-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ISSAQUAH WA
2005-06-21 425-526-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ISSAQUAH WA
2005-06-21 425-526-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ISSAQUAH WA
2005-06-21 425-527-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BOTHELL WA
2005-06-21 425-527-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BOTHELL WA
2005-06-21 425-527-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BOTHELL WA
2005-06-21 425-527-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BOTHELL WA
2005-06-20 425-328-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 EVERETT WA
2005-06-20 425-328-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 EVERETT WA
2005-06-20 425-328-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 EVERETT WA
2005-06-20 425-654-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 ISSAQUAH WA
2005-06-20 425-654-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 ISSAQUAH WA
2005-06-09 425-749-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 BELLEVUE WA
2005-06-07 425-248-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 HALLS LAKE WA
2005-06-07 425-248-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 HALLS LAKE WA
2005-06-07 425-248-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 HALLS LAKE WA
2005-06-07 425-283-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BELLEVUE WA
2005-06-07 425-301-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BELLEVUE WA
2005-06-02 425-408-4XXX 4000–4999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 BOTHELL WA
2005-06-02 425-408-5XXX 5000–5999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 BOTHELL WA
2005-06-02 425-408-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 BOTHELL WA
2005-05-22 425-431-0XXX 0000–0999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 HALLS LAKE WA
2005-05-22 425-431-1XXX 1000–1999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 HALLS LAKE WA
2005-05-22 425-431-2XXX 2000–2999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 HALLS LAKE WA
2005-05-22 425-431-3XXX 3000–3999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 HALLS LAKE WA
2005-05-22 425-431-4XXX 4000–4999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 HALLS LAKE WA
2005-05-22 425-431-5XXX 5000–5999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 HALLS LAKE WA
2005-05-22 425-431-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 HALLS LAKE WA
2005-05-22 425-431-7XXX 7000–7999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 HALLS LAKE WA
2005-05-22 425-431-8XXX 8000–8999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 HALLS LAKE WA
2005-05-22 425-431-9XXX 9000–9999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 HALLS LAKE WA
2005-05-17 425-307-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 KIRKLAND WA
2005-05-17 425-307-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 KIRKLAND WA
2005-05-16 425-336-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 RENTON WA
2005-05-16 425-336-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 RENTON 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.