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
2010-08-18 360-296-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHATCOMCTY WA
2010-08-18 360-441-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WHATCOMCTY WA
2010-08-10 360-553-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 VANCOUVER WA
2010-08-10 360-553-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2010-08-10 360-850-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BREMERTON WA
2010-08-10 360-914-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OAK HARBOR WA
2010-08-10 360-960-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J YELM WA
2010-08-06 360-252-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OLYMPIA WA
2010-07-22 360-524-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 VANCOUVER WA
2010-07-20 360-515-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E OLYMPIA WA
2010-07-09 360-860-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KINGSTON WA
2010-07-01 360-747-5XXX 5000–5999Assigned QWEST CORPORATION 9638 LONGVIEW WA
2010-06-29 360-255-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WHATCOMCTY WA
2010-06-25 360-205-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F BELFAIR WA
2010-06-25 360-219-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F CHEHALIS WA
2010-06-25 360-226-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F ENUMCLAW WA
2010-06-25 360-301-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F PTTOWNSEND WA
2010-06-25 360-342-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F BATTLEGRND WA
2010-06-25 360-347-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F ROCHESTER WA
2010-06-25 360-523-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F CENTRALIA WA
2010-06-25 360-747-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E LONGVIEW WA
2010-06-23 360-200-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F LONGVIEW WA
2010-06-23 360-207-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F PT ANGELES WA
2010-06-23 360-358-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SHELTON WA
2010-06-23 360-362-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F BREMERTON WA
2010-06-23 360-399-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F MT VERNON WA
2010-06-23 360-499-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F OAK HARBOR WA
2010-06-23 360-515-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F OLYMPIA WA
2010-06-23 360-519-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F PORT ORCH WA
2010-06-23 360-633-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F SILVERDALE WA
2010-06-21 360-322-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F MARYSVILLE WA
2010-06-11 360-524-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F VANCOUVER WA
2010-05-27 360-525-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2010-05-26 360-627-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J BREMERTON WA
2010-05-11 360-742-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J OLYMPIA WA
2010-05-10 360-222-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SO WHIDBEY WA
2010-05-07 360-249-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E MONTESANO WA
2010-05-06 360-445-8XXX 8000–8999Assigned ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 4423 MT VERNON WA
2010-05-03 360-398-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 WHATCOMCTY WA
2010-04-28 360-595-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WHATCOMCTY WA
2010-04-28 360-840-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2010-04-23 360-637-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J ABERDEEN WA
2010-04-20 360-594-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 WHATCOMCTY WA
2010-04-19 360-358-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J SHELTON WA
2010-04-05 360-707-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MT VERNON WA
2010-04-05 360-912-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 PT ANGELES WA
2010-03-17 360-432-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J SHELTON WA
2010-03-12 360-841-2XXX 2000–2999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 WOODLAND WA
2010-03-11 360-544-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OAK HARBOR WA
2010-03-11 360-703-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 LONGVIEW 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.