NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

8 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
LEVEL 3 COMMUNICATIONS, LLC - WA 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2003-07-16 509-449-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BRIDGEPORT WA
2003-07-16 509-885-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA 7274 WENATCHEE WA
2003-06-25 509-250-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GOLDENDALE WA
2003-06-24 509-630-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WENATCHEE WA
2003-06-24 509-630-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WENATCHEE WA
2003-06-20 509-318-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CONNELL WA
2003-06-19 509-435-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2003-06-19 509-954-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2003-06-19 509-998-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2003-06-19 509-998-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2003-06-18 509-387-6XXX 6000–6999Assigned METROPCS, INC. 5562 WENATCHEE WA
2003-06-18 509-387-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WENATCHEE WA
2003-04-17 509-860-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WENATCHEE WA
2003-04-17 509-860-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WENATCHEE WA
2003-04-16 509-560-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OROVILLE WA
2003-03-12 509-347-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 RITZVILLE WA
2003-03-12 509-855-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MOSES LAKE WA
2003-02-14 509-954-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2003-02-14 509-954-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2003-02-14 509-954-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SPOKANE WA
2003-02-07 509-498-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CHENEY WA
2003-02-03 509-240-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WALLAWALLA WA
2003-02-03 509-393-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WENATCHEE WA
2002-12-09 509-733-7XXX 7000–7999Assigned COMPUTERS 5*, INC. DBA LOCALTEL - WA 3229 BREWSTER WA
2002-12-04 509-699-2XXX 2000–2999Assigned WESTGATE COMMUNICATIONS, LLC DBA WEAVTEL - WA 580D WENATCHEE WA
2002-11-07 509-336-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PULLMAN WA
2002-10-31 509-250-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GOLDENDALE WA
2002-10-31 509-637-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WH SALMON WA
2002-09-30 509-293-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 WENATCHEE WA
2002-09-06 509-775-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E REPUBLIC WA
2002-07-18 509-855-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MOSES LAKE WA
2002-05-16 509-392-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 RICHLAND WA
2002-05-08 509-590-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SPOKANE WA
2002-05-08 509-591-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 KENNEWICK WA
2002-05-08 509-592-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 PULLMAN WA
2002-05-08 509-593-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 WALLAWALLA WA
2002-05-08 509-594-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 YAKIMA WA
2002-03-12 509-246-8XXX 8000–8999Assigned COMPUTERS 5*, INC. DBA LOCALTEL - WA 3229 SOAP LAKE WA
2002-03-12 509-797-2XXX 2000–2999Assigned COMPUTERS 5*, INC. DBA LOCALTEL - WA 3229 QUINCY 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.