NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

7 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 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
2008-10-09 509-769-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CLARKSTON WA
2008-10-01 509-607-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ELLENSBURG WA
2008-09-30 509-720-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SPOKANE WA
2008-09-24 509-646-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E WASHTUCNA WA
2008-09-24 509-673-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E TIETON WA
2008-09-24 509-678-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E COWICHE WA
2008-09-24 509-770-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E MOSES LAKE WA
2008-09-23 509-855-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MOSES LAKE WA
2008-09-18 509-380-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 PASCO WA
2008-09-18 509-592-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 PULLMAN WA
2008-09-17 509-222-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 KENNEWICK WA
2008-09-17 509-713-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E RICHLAND WA
2008-09-16 509-318-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CONNELL WA
2008-09-15 509-413-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2008-09-15 509-435-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2008-09-15 509-464-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2008-09-15 509-723-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2008-09-15 509-723-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2008-09-15 509-723-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2008-09-15 509-723-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2008-09-15 509-742-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2008-08-29 509-713-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 RICHLAND WA
2008-08-28 509-346-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OTHELLO WA
2008-08-28 509-553-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 COLFAX WA
2008-08-28 509-790-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SUNNYSIDE WA
2008-08-22 509-414-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E ELK-GRNBLF WA
2008-08-20 509-707-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MOSES LAKE WA
2008-08-20 509-823-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 YAKIMA WA
2008-08-20 509-942-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 RICHLAND WA
2008-08-19 509-956-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WALLAWALLA WA
2008-08-18 509-262-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E DEER PARK WA
2008-08-08 509-215-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E DAVENPORT WA
2008-08-08 509-236-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E EDWALLTYLR WA
2008-08-08 509-245-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E SPANGLE WA
2008-08-08 509-253-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E HARRINGTON WA
2008-08-08 509-257-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E SPRAGUE WA
2008-08-08 509-265-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E CONNELL WA
2008-08-08 509-266-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E MATHEWSCOR WA
2008-08-08 509-269-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E CONNELL WA
2008-08-08 509-297-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E MATHEWSCOR WA
2008-08-08 509-318-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E CONNELL WA
2008-08-08 509-341-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E TWISP WA
2008-08-08 509-345-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E WILSON CRK WA
2008-08-08 509-636-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E CRESTON WA
2008-08-08 509-639-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E ALMIRA WA
2008-08-08 509-647-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E WILBUR WA
2008-08-08 509-659-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E RITZVILLE WA
2008-08-08 509-672-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E RIMROCK WA
2008-08-08 509-677-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E LIND WA
2008-08-08 509-681-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E COULEECITY 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.