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
2014-07-01 360-947-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 VANCOUVER WA
2014-06-26 360-723-2XXX 2000–2999Assigned METROPCS, INC. 5562 BATTLEGRND WA
2014-06-26 360-841-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WOODLAND WA
2014-06-26 360-947-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2014-06-26 360-954-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CAMAS WA
2014-06-20 360-526-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E WHATCOMCTY WA
2014-06-20 360-702-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BATTLEGRND WA
2014-06-17 360-952-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2014-06-16 360-932-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BREMERTON WA
2014-06-11 360-924-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 ABERDEEN WA
2014-06-10 360-346-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 ELMA WA
2014-06-10 360-984-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2014-06-02 360-924-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ABERDEEN WA
2014-05-23 360-932-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2014-05-23 360-932-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2014-05-22 360-984-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2014-05-13 360-979-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2014-05-12 360-984-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2014-05-12 360-984-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2014-05-09 360-294-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J SNOHOMISH WA
2014-05-09 360-984-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J VANCOUVER WA
2014-05-01 360-890-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2014-04-22 360-267-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 GRAYHARBCO WA
2014-04-21 360-890-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 OLYMPIA WA
2014-04-11 360-306-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2014-04-11 360-399-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MT VERNON WA
2014-04-11 360-399-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MT VERNON WA
2014-04-10 360-844-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J CAMAS WA
2014-04-08 360-207-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PT ANGELES WA
2014-03-25 360-890-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2014-03-25 360-994-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF WASHINGTON, LLC - WA 7455 POULSBO WA
2014-03-19 360-843-8XXX 8000–8999Assigned METROPCS, INC. 5562 BATTLEGRND WA
2014-03-18 360-488-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2014-03-17 360-984-2XXX 2000–2999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 VANCOUVER WA
2014-03-13 360-979-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2014-03-12 360-587-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SKYKOMISH WA
2014-03-11 360-215-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PORTLUDLOW WA
2014-03-11 360-234-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BUCKLEY WA
2014-03-11 360-368-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 WINLOCK WA
2014-03-11 360-469-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BLACKDIMND WA
2014-03-11 360-663-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CRYSTAL MT WA
2014-03-11 360-669-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CENTRALIA WA
2014-03-11 360-702-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BATTLEGRND WA
2014-03-11 360-717-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HOODSPORT WA
2014-03-11 360-858-2XXX 2000–2999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ROCHESTER WA
2014-03-11 360-940-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 COPALIS WA
2014-03-11 360-948-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CHEHALIS WA
2014-03-11 360-973-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 STEVESPASS WA
2014-03-10 360-353-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 LONGVIEW WA
2014-03-06 360-932-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BREMERTON 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.