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
2004-08-16 360-788-6XXX 6000–6999Assigned QWEST CORPORATION 9638 WHATCOMCTY WA
2004-08-13 360-500-7XXX 7000–7999Assigned METROPCS, INC. 5562 ABERDEEN WA
2004-08-04 360-433-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2004-08-03 360-244-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONG BEACH WA
2004-07-30 360-448-2XXX 2000–2999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 VANCOUVER WA
2004-06-29 360-588-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MT VERNON WA
2004-06-28 360-637-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 ABERDEEN WA
2004-06-24 360-521-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2004-06-16 360-286-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SILVERDALE WA
2004-06-16 360-485-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2004-06-16 360-920-0XXX 0000–0999Assigned METROPCS, INC. 5562 WHATCOMCTY WA
2004-06-08 360-536-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2004-06-08 360-536-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2004-06-04 360-208-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SOUTH BEND WA
2004-06-04 360-244-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 LONG BEACH WA
2004-06-04 360-630-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2004-06-04 360-663-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 CRYSTAL MT WA
2004-05-24 360-622-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SAN JUAN WA
2004-05-18 360-433-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2004-05-18 360-870-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2004-05-13 360-270-2XXX 2000–2999Assigned METROPCS, INC. 5562 LONGVIEW WA
2004-05-13 360-270-4XXX 4000–4999Assigned METROPCS, INC. 5562 LONGVIEW WA
2004-05-11 360-861-1XXX 1000–1999Assigned UNITED STATES CELLULAR - WA 6270 ELMA WA
2004-05-11 360-861-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 ELMA WA
2004-05-07 360-461-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 PT ANGELES WA
2004-05-07 360-461-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 PT ANGELES WA
2004-05-07 360-464-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 OLYMPIA WA
2004-05-06 360-587-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SKYKOMISH WA
2004-05-06 360-851-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 BLACKDIMND WA
2004-05-04 360-402-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2004-04-27 360-208-4XXX 4000–4999Assigned UNITED STATES CELLULAR - WA 6270 SOUTH BEND WA
2004-04-27 360-208-6XXX 6000–6999Assigned UNITED STATES CELLULAR - WA 6270 SOUTH BEND WA
2004-04-21 360-970-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2004-04-21 360-970-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2004-04-20 360-219-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHEHALIS WA
2004-04-14 360-286-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SILVERDALE WA
2004-03-08 360-920-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 WHATCOMCTY WA
2004-02-26 360-621-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2004-02-26 360-621-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2004-02-20 360-217-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SNOHOMISH WA
2004-02-20 360-284-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ENUMCLAW WA
2004-02-20 360-302-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PTTOWNSEND WA
2004-02-20 360-305-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WHATCOMCTY WA
2004-02-20 360-330-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CENTRALIA WA
2004-02-20 360-350-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 OLYMPIA WA
2004-02-20 360-386-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MARYSVILLE WA
2004-02-20 360-406-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PT ANGELES WA
2004-02-20 360-588-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MT VERNON WA
2004-02-20 360-639-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 OAK HARBOR WA
2004-02-11 360-624-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER 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.