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
2006-03-06 360-680-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 HOOD CANAL WA
2006-03-02 360-355-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONGVIEW WA
2006-03-01 360-356-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-03-01 360-356-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-03-01 360-356-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-03-01 360-593-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ABERDEEN WA
2006-02-23 360-292-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2006-02-15 360-230-1XXX 1000–1999Assigned ONVOY, LLC - WA 483E MT VERNON WA
2006-02-15 360-719-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2006-02-15 360-853-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MT VERNON WA
2006-02-14 360-637-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E ABERDEEN WA
2006-02-09 360-485-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2006-02-09 360-485-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2006-02-09 360-618-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MARYSVILLE WA
2006-02-09 360-704-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2006-02-07 360-450-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-02-07 360-450-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-02-07 360-450-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-02-07 360-487-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2006-02-07 360-560-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONGVIEW WA
2006-01-31 360-292-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2006-01-25 360-930-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 POULSBO WA
2006-01-23 360-775-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PT ANGELES WA
2006-01-15 360-670-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PT ANGELES WA
2006-01-11 360-204-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SILVERDALE WA
2006-01-11 360-219-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHEHALIS WA
2006-01-11 360-255-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHATCOMCTY WA
2006-01-11 360-255-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHATCOMCTY WA
2006-01-11 360-395-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MT VERNON WA
2006-01-11 360-395-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MT VERNON WA
2006-01-11 360-528-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OLYMPIA WA
2006-01-11 360-528-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OLYMPIA WA
2006-01-11 360-528-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OLYMPIA WA
2006-01-11 360-632-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OAK HARBOR WA
2006-01-11 360-632-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OAK HARBOR WA
2006-01-11 360-813-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BREMERTON WA
2006-01-11 360-813-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BREMERTON WA
2006-01-03 360-304-8XXX 8000–8999Assigned METROPCS, INC. 5562 CHEHALIS WA
2006-01-03 360-391-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2006-01-03 360-821-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PTTOWNSEND WA
2005-12-29 360-851-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 BLACKDIMND WA
2005-12-21 360-388-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CENTRALIA WA
2005-12-20 360-318-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHATCOMCTY WA
2005-12-15 360-448-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2005-12-13 360-483-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 WHATCOMCTY WA
2005-12-13 360-587-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E SKYKOMISH WA
2005-12-13 360-630-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MT VERNON WA
2005-12-13 360-637-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E ABERDEEN WA
2005-12-13 360-639-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F OAK HARBOR WA
2005-12-13 360-689-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE 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.