NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 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
2003-06-19 425-679-3XXX 3000–3999Assigned QWEST CORPORATION 9638 BELLEVUE WA
2003-06-19 425-679-4XXX 4000–4999Assigned QWEST CORPORATION 9638 BELLEVUE WA
2003-06-19 425-679-7XXX 7000–7999Assigned QWEST CORPORATION 9638 BELLEVUE WA
2003-06-19 425-679-8XXX 8000–8999Assigned QWEST CORPORATION 9638 BELLEVUE WA
2003-06-19 425-923-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 EVERETT WA
2003-06-19 425-923-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 EVERETT WA
2003-06-19 425-923-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 EVERETT WA
2003-06-19 425-923-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 EVERETT WA
2003-06-19 425-923-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 EVERETT WA
2003-06-19 425-923-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 EVERETT WA
2003-06-04 425-205-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BOTHELL WA
2003-06-04 425-205-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BOTHELL WA
2003-06-04 425-358-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MAPLE VLY WA
2003-04-25 425-224-8XXX 8000–8999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SILVERLAKE WA
2003-03-26 425-233-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 BELLEVUE WA
2003-03-26 425-275-4XXX 4000–4999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 HALLS LAKE WA
2003-03-26 425-295-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 ISSAQUAH WA
2003-03-26 425-296-5XXX 5000–5999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 KIRKLAND WA
2003-03-26 425-336-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 RENTON WA
2003-03-26 425-368-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 BOTHELL WA
2003-03-19 425-263-3XXX 3000–3999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 EVERETT WA
2003-03-12 425-908-4XXX 4000–4999Assigned ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 4324 BOTHELL WA
2003-03-12 425-908-5XXX 5000–5999Assigned ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 4324 BOTHELL WA
2003-03-12 425-908-6XXX 6000–6999Assigned ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 4324 BOTHELL WA
2003-02-11 425-908-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BOTHELL WA
2003-02-07 425-223-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BELLEVUE WA
2003-02-07 425-522-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J KIRKLAND WA
2003-01-10 425-301-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BELLEVUE WA
2003-01-06 425-283-1XXX 1000–1999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 BELLEVUE WA
2003-01-02 425-296-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 KIRKLAND WA
2002-12-12 425-329-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 HALLS LAKE WA
2002-12-12 425-341-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SILVERLAKE WA
2002-12-12 425-354-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 BOTHELL WA
2002-11-21 425-385-4XXX 4000–4999Assigned ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 4324 SILVERLAKE WA
2002-11-21 425-385-5XXX 5000–5999Assigned ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 4324 SILVERLAKE WA
2002-11-21 425-385-6XXX 6000–6999Assigned ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 4324 SILVERLAKE WA
2002-11-21 425-385-7XXX 7000–7999Assigned ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 4324 SILVERLAKE WA
2002-11-19 425-301-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BELLEVUE WA
2002-09-13 425-582-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 HALLS LAKE WA
— 425-529-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 RENTON WA
— 425-529-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 RENTON 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.