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
2003-03-03 360-219-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHEHALIS WA
2003-03-03 360-268-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GRAYHARBCO WA
2003-03-03 360-807-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 CENTRALIA WA
2003-02-28 360-510-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHATCOMCTY WA
2002-12-20 360-287-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MARYSVILLE WA
2002-12-12 360-329-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 PORT ORCH WA
2002-12-02 360-310-1XXX 1000–1999Assigned TSS DIGITAL SERVICES, LCC - WA 1488 ABERDEEN WA
2002-12-02 360-310-5XXX 5000–5999Assigned TSS DIGITAL SERVICES, LCC - WA 1488 ABERDEEN WA
2002-11-19 360-442-9XXX 9000–9999Assigned METROPCS, INC. 5562 LONGVIEW WA
2002-11-19 360-487-1XXX 1000–1999Assigned QWEST CORPORATION 9638 VANCOUVER WA
2002-11-19 360-487-2XXX 2000–2999Assigned QWEST CORPORATION 9638 VANCOUVER WA
2002-11-19 360-487-3XXX 3000–3999Assigned QWEST CORPORATION 9638 VANCOUVER WA
2002-11-19 360-487-4XXX 4000–4999Assigned QWEST CORPORATION 9638 VANCOUVER WA
2002-11-19 360-662-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SILVERDALE WA
2002-11-19 360-807-3XXX 3000–3999Assigned METROPCS, INC. 5562 CENTRALIA WA
2002-11-19 360-829-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BUCKLEY WA
2002-10-21 360-453-2XXX 2000–2999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SNOHOMISH WA
2002-10-03 360-915-0XXX 0000–0999Assigned TSS DIGITAL SERVICES, LCC - WA 1488 OLYMPIA WA
2002-10-03 360-915-1XXX 1000–1999Assigned TSS DIGITAL SERVICES, LCC - WA 1488 OLYMPIA WA
2002-09-30 360-877-2XXX 2000–2999Assigned HOOD CANAL TELCO, INC. DBA HOOD CANAL COMM - WA 0403 HOODSPORT WA
2002-09-11 360-329-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PORT ORCH WA
2002-09-09 360-326-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2002-09-09 360-326-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2002-09-09 360-433-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 VANCOUVER WA
2002-09-09 360-433-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 VANCOUVER WA
2002-08-21 360-443-3XXX 3000–3999Assigned QWEST CORPORATION 9638 PORT ORCH WA
2002-08-16 360-390-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 PTTOWNSEND WA
2002-07-10 360-362-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 BREMERTON WA
2002-07-10 360-419-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MT VERNON WA
2002-07-10 360-639-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 OAK HARBOR WA
2002-07-10 360-707-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MT VERNON WA
2002-05-31 360-627-2XXX 2000–2999Assigned QWEST CORPORATION 9638 BREMERTON WA
2002-05-31 360-627-3XXX 3000–3999Assigned QWEST CORPORATION 9638 BREMERTON WA
2002-05-31 360-627-4XXX 4000–4999Assigned QWEST CORPORATION 9638 BREMERTON WA
2002-05-31 360-627-5XXX 5000–5999Assigned QWEST CORPORATION 9638 BREMERTON WA
2002-05-31 360-627-6XXX 6000–6999Assigned QWEST CORPORATION 9638 BREMERTON WA
2002-05-28 360-550-9XXX 9000–9999Assigned INTRADO COMMUNICATIONS, LLC 841C BREMERTON WA
2002-05-16 360-262-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 CHEHALIS WA
2002-05-16 360-284-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 ENUMCLAW WA
2002-05-16 360-312-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 WHATCOMCTY WA
2002-05-16 360-406-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 PT ANGELES WA
2002-05-16 360-536-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SILVERDALE WA
2002-05-16 360-562-9XXX 9000–9999Assigned INTRADO COMMUNICATIONS, LLC 834C LONGVIEW WA
2002-05-16 360-868-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SHELTON WA
2002-05-08 360-761-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 BUCKLEY WA
2002-04-12 360-464-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 OLYMPIA WA
2002-04-12 360-474-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MARYSVILLE WA
2002-04-12 360-654-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MARYSVILLE WA
2002-04-12 360-727-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 RIDGEFIELD WA
2002-04-12 360-799-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SNOHOMISH 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.