NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

7 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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 509
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 3
NEW CINGULAR WIRELESS PCS, LLC 2
EXIANT COMMUNICATIONS 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
2012-08-31 509-797-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 QUINCY WA
2012-08-31 509-822-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SPOKANE WA
2012-08-23 509-724-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2012-08-23 509-808-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2012-08-23 509-808-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2012-08-23 509-808-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2012-08-20 509-724-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2012-08-20 509-724-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2012-08-20 509-724-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2012-08-20 509-770-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MOSES LAKE WA
2012-08-14 509-237-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 EPHRATA WA
2012-08-10 509-412-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 PASCO WA
2012-08-10 509-424-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 YAKIMA WA
2012-07-23 509-774-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WH SALMON WA
2012-07-09 509-424-4XXX 4000–4999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 YAKIMA WA
2012-07-09 509-859-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 ELLENSBURG WA
2012-07-05 509-289-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 EPHRATA WA
2012-07-05 509-412-8XXX 8000–8999Assigned METROPCS, INC. 5562 PASCO WA
2012-07-05 509-491-9XXX 9000–9999Assigned METROPCS, INC. 5562 KENNEWICK WA
2012-07-02 509-424-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 YAKIMA WA
2012-07-02 509-724-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2012-07-02 509-724-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2012-07-02 509-836-9XXX 9000–9999Assigned METROPCS, INC. 5562 SUNNYSIDE WA
2012-06-26 509-821-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 DEER PARK WA
2012-06-13 509-821-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 DEER PARK WA
2012-06-12 509-203-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 GRANDVIEW WA
2012-06-12 509-207-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 REPUBLIC WA
2012-06-12 509-260-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 CLE ELUM WA
2012-06-12 509-288-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 COLFAX WA
2012-06-12 509-314-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 TOPPENISH WA
2012-06-12 509-382-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 DAYTON WA
2012-06-12 509-439-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 SUNNYSIDE WA
2012-06-12 509-563-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 COLVILLE WA
2012-06-12 509-633-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 COULEE DAM WA
2012-06-12 509-780-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 CLARKSTON WA
2012-06-12 509-797-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 QUINCY WA
2012-06-11 509-731-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 YAKIMA WA
2012-05-31 509-412-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 PASCO WA
2012-05-18 509-822-4XXX 4000–4999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SPOKANE WA
2012-05-07 509-828-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2012-05-03 509-424-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 YAKIMA WA
2012-05-03 509-424-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 YAKIMA WA
2012-04-30 509-415-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WENATCHEE WA
2012-04-27 509-361-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MOSES LAKE WA
2012-04-27 509-391-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SUNNYSIDE WA
2012-04-20 509-724-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SPOKANE WA
2012-04-10 509-724-4XXX 4000–4999Assigned QWEST CORPORATION 9638 SPOKANE WA
2012-04-06 509-276-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 DEER PARK WA
2012-04-02 509-237-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F EPHRATA WA
2012-04-02 509-255-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F LIBERTY LK WA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.