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 360
EXIANT COMMUNICATIONS LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2004-02-11 360-624-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2004-02-11 360-624-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2004-01-14 360-855-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MT VERNON WA
2003-12-05 360-433-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2003-11-21 360-277-5XXX 5000–5999Assigned HOOD CANAL TELCO, INC. DBA HOOD CANAL COMM - WA 0403 BELFAIR WA
2003-11-17 360-265-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2003-11-17 360-265-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2003-11-17 360-480-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2003-11-17 360-480-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2003-10-31 360-442-0XXX 0000–0999Assigned METROPCS, INC. 5562 LONGVIEW WA
2003-10-30 360-237-4XXX 4000–4999Assigned METROPCS, INC. 5562 CENTRALIA WA
2003-10-30 360-761-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BUCKLEY WA
2003-10-28 360-508-8XXX 8000–8999Assigned METROPCS, INC. 5562 CENTRALIA WA
2003-10-28 360-508-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CENTRALIA WA
2003-10-21 360-624-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2003-10-21 360-624-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2003-10-21 360-624-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2003-10-14 360-433-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2003-10-13 360-243-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SNOHOMISH WA
2003-10-13 360-259-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OLYMPIA WA
2003-10-13 360-259-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OLYMPIA WA
2003-10-13 360-259-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OLYMPIA WA
2003-10-06 360-674-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BREMERTON WA
2003-09-25 360-454-5XXX 5000–5999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 MARYSVILLE WA
2003-09-25 360-682-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 OAK HARBOR WA
2003-09-24 360-340-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SILVERDALE WA
2003-09-24 360-433-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2003-09-22 360-626-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 POULSBO WA
2003-09-19 360-265-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2003-09-10 360-324-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHEHALIS WA
2003-08-21 360-483-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 WHATCOMCTY WA
2003-08-21 360-601-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2003-08-21 360-624-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2003-08-13 360-312-5XXX 5000–5999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 WHATCOMCTY WA
2003-08-04 360-420-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MT VERNON WA
2003-08-04 360-510-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHATCOMCTY WA
2003-08-04 360-510-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHATCOMCTY WA
2003-08-04 360-510-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHATCOMCTY WA
2003-08-04 360-510-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHATCOMCTY WA
2003-08-01 360-662-7XXX 7000–7999Assigned QWEST CORPORATION 9638 SILVERDALE WA
2003-06-24 360-601-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2003-06-24 360-601-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2003-06-18 360-562-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 LONGVIEW WA
2003-06-03 360-442-8XXX 8000–8999Assigned METROPCS, INC. 5562 LONGVIEW WA
2003-05-27 360-259-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OLYMPIA WA
2003-05-01 360-783-2XXX 2000–2999Assigned UNITED STATES CELLULAR - WA 6270 LONG BEACH WA
2003-04-15 360-722-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MARYSVILLE WA
2003-04-10 360-262-5XXX 5000–5999Assigned TSS DIGITAL SERVICES, LCC - WA 1488 CHEHALIS WA
2003-04-09 360-857-3XXX 3000–3999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 RIDGEFIELD WA
2003-03-25 360-860-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KINGSTON 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.