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
2007-09-12 360-850-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BREMERTON WA
2007-09-12 360-850-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BREMERTON WA
2007-09-07 360-306-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WHATCOMCTY WA
2007-09-07 360-628-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2007-09-07 360-628-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2007-09-05 360-814-6XXX 6000–6999Assigned ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 4423 MT VERNON WA
2007-09-05 360-814-7XXX 7000–7999Assigned ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 4423 MT VERNON WA
2007-08-29 360-481-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2007-08-29 360-989-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2007-08-29 360-989-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2007-08-28 360-296-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2007-08-28 360-296-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2007-08-27 360-630-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MT VERNON WA
2007-08-27 360-630-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MT VERNON WA
2007-08-23 360-623-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CENTRALIA WA
2007-08-22 360-930-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J POULSBO WA
2007-08-20 360-500-2XXX 2000–2999Assigned METROPCS, INC. 5562 ABERDEEN WA
2007-08-17 360-453-3XXX 3000–3999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 SNOHOMISH WA
2007-08-16 360-232-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 LONGVIEW WA
2007-08-09 360-268-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GRAYHARBCO WA
2007-08-07 360-628-5XXX 5000–5999Assigned LEVEL 3 TELECOM OF WASHINGTON, LLC - WA 7455 OLYMPIA WA
2007-08-01 360-441-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WHATCOMCTY WA
2007-08-01 360-441-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 WHATCOMCTY WA
2007-08-01 360-441-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WHATCOMCTY WA
2007-08-01 360-442-1XXX 1000–1999Assigned METROPCS, INC. 5562 LONGVIEW WA
2007-08-01 360-442-6XXX 6000–6999Assigned METROPCS, INC. 5562 LONGVIEW WA
2007-08-01 360-610-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2007-08-01 360-610-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2007-08-01 360-610-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MT VERNON WA
2007-07-24 360-443-2XXX 2000–2999Assigned ASTOUND BROADBAND, LLC - WA 937F PORT ORCH WA
2007-07-16 360-356-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2007-06-29 360-355-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 LONGVIEW WA
2007-06-29 360-473-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BREMERTON WA
2007-06-28 360-359-4XXX 4000–4999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7173 OLYMPIA WA
2007-06-25 360-801-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BELFAIR WA
2007-06-21 360-550-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2007-06-15 360-718-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VANCOUVER WA
2007-06-14 360-589-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 ABERDEEN WA
2007-06-14 360-783-1XXX 1000–1999Assigned UNITED STATES CELLULAR - WA 6270 LONG BEACH WA
2007-06-12 360-350-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 OLYMPIA WA
2007-06-12 360-632-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 OAK HARBOR WA
2007-06-08 360-643-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PTTOWNSEND WA
2007-06-01 360-716-0XXX 0000–0999Assigned SALISH NETWORKS, INC. - WA 152H MARYSVILLE WA
2007-06-01 360-716-1XXX 1000–1999Assigned SALISH NETWORKS, INC. - WA 152H MARYSVILLE WA
2007-06-01 360-716-2XXX 2000–2999Assigned SALISH NETWORKS, INC. - WA 152H MARYSVILLE WA
2007-06-01 360-716-3XXX 3000–3999Assigned SALISH NETWORKS, INC. - WA 152H MARYSVILLE WA
2007-06-01 360-716-4XXX 4000–4999Assigned SALISH NETWORKS, INC. - WA 152H MARYSVILLE WA
2007-06-01 360-716-5XXX 5000–5999Assigned SALISH NETWORKS, INC. - WA 152H MARYSVILLE WA
2007-06-01 360-716-6XXX 6000–6999Assigned SALISH NETWORKS, INC. - WA 152H MARYSVILLE WA
2007-06-01 360-716-7XXX 7000–7999Assigned SALISH NETWORKS, INC. - WA 152H MARYSVILLE 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.