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
2005-12-13 360-689-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2005-12-07 360-298-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SAN JUAN WA
2005-12-06 360-292-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OLYMPIA WA
2005-12-06 360-292-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OLYMPIA WA
2005-12-06 360-593-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ABERDEEN WA
2005-12-06 360-674-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BREMERTON WA
2005-12-06 360-674-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BREMERTON WA
2005-12-01 360-200-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONGVIEW WA
2005-12-01 360-200-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONGVIEW WA
2005-12-01 360-314-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2005-11-30 360-292-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2005-11-23 360-496-1XXX 1000–1999Assigned UNITED STATES CELLULAR - WA 6270 MORTON WA
2005-11-23 360-496-8XXX 8000–8999Assigned UNITED STATES CELLULAR - WA 6270 MORTON WA
2005-11-22 360-386-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MARYSVILLE WA
2005-11-18 360-588-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MT VERNON WA
2005-11-18 360-588-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MT VERNON WA
2005-11-18 360-766-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MT VERNON WA
2005-11-17 360-804-1XXX 1000–1999Assigned SKYLINE TELECOM COMPANY - WA 581D SNOHOMISH WA
2005-11-15 360-775-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PT ANGELES WA
2005-11-10 360-305-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2005-11-10 360-342-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 BATTLEGRND WA
2005-11-10 360-342-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 BATTLEGRND WA
2005-11-10 360-393-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2005-11-10 360-477-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 PT ANGELES WA
2005-11-04 360-560-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONGVIEW WA
2005-11-04 360-567-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2005-11-04 360-567-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2005-11-04 360-597-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2005-11-04 360-597-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2005-11-04 360-597-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2005-11-04 360-713-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2005-11-02 360-389-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHATCOMCTY WA
2005-10-28 360-326-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 VANCOUVER WA
2005-10-28 360-326-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 VANCOUVER WA
2005-10-28 360-326-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 VANCOUVER WA
2005-10-28 360-326-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 VANCOUVER WA
2005-10-28 360-420-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MT VERNON WA
2005-10-28 360-466-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MT VERNON WA
2005-10-27 360-899-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MT VERNON WA
2005-10-24 360-304-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CHEHALIS WA
2005-10-24 360-528-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OLYMPIA WA
2005-10-24 360-632-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OAK HARBOR WA
2005-10-24 360-813-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BREMERTON WA
2005-10-24 360-930-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 POULSBO WA
2005-10-14 360-339-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OLYMPIA WA
2005-10-14 360-339-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OLYMPIA WA
2005-10-07 360-483-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 WHATCOMCTY WA
2005-10-06 360-560-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONGVIEW WA
2005-09-28 360-326-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2005-09-23 360-689-2XXX 2000–2999Assigned 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.