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
2012-02-16 360-335-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CAMAS WA
2012-02-01 360-401-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SHELTON WA
2012-02-01 360-419-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 MT VERNON WA
2012-02-01 360-587-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 SKYKOMISH WA
2012-02-01 360-747-9XXX 9000–9999Assigned METROPCS, INC. 5562 LONGVIEW WA
2012-01-30 360-949-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2012-01-25 360-338-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OLYMPIA WA
2012-01-25 360-591-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ABERDEEN WA
2012-01-24 360-338-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 OLYMPIA WA
2012-01-23 360-982-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2012-01-18 360-344-2XXX 2000–2999Assigned ASTOUND BROADBAND, LLC - WA 937F PTTOWNSEND WA
2012-01-18 360-827-4XXX 4000–4999Assigned METROPCS, INC. 5562 CENTRALIA WA
2012-01-18 360-914-4XXX 4000–4999Assigned ASTOUND BROADBAND, LLC - WA 937F OAK HARBOR WA
2012-01-18 360-982-9XXX 9000–9999Assigned METROPCS, INC. 5562 MT VERNON WA
2012-01-06 360-913-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MARYSVILLE WA
2012-01-04 360-338-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 OLYMPIA WA
2012-01-03 360-215-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E PORTLUDLOW WA
2011-12-27 360-729-1XXX 1000–1999Assigned QWEST CORPORATION 9638 VANCOUVER WA
2011-12-21 360-243-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J SNOHOMISH WA
2011-12-14 360-222-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SO WHIDBEY WA
2011-12-07 360-226-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J ENUMCLAW WA
2011-12-07 360-338-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2011-12-06 360-338-4XXX 4000–4999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 OLYMPIA WA
2011-12-05 360-952-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2011-12-05 360-952-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2011-12-02 360-328-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SILVERDALE WA
2011-12-01 360-702-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J BATTLEGRND WA
2011-11-23 360-799-9XXX 9000–9999Assigned ASTOUND BROADBAND, LLC - WA 937F SNOHOMISH WA
2011-11-14 360-338-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2011-11-04 360-952-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 VANCOUVER WA
2011-11-02 360-363-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J MARYSVILLE WA
2011-10-19 360-325-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHATCOMCTY WA
2011-10-19 360-562-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONGVIEW WA
2011-10-19 360-612-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ABERDEEN WA
2011-10-19 360-808-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PT ANGELES WA
2011-10-12 360-335-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CAMAS WA
2011-10-12 360-338-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OLYMPIA WA
2011-10-04 360-830-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2011-10-04 360-994-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 POULSBO WA
2011-09-29 360-399-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MT VERNON WA
2011-09-22 360-469-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J BLACKDIMND WA
2011-09-13 360-328-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SILVERDALE WA
2011-09-13 360-685-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHATCOMCTY WA
2011-09-13 360-982-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MT VERNON WA
2011-09-12 360-861-6XXX 6000–6999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F ELMA WA
2011-09-12 360-934-4XXX 4000–4999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SOUTH BEND WA
2011-09-08 360-496-4XXX 4000–4999Assigned UNITED STATES CELLULAR - WA 6270 MORTON WA
2011-09-08 360-872-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J ORTING WA
2011-09-07 360-338-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2011-09-01 360-389-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J WHATCOMCTY 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.