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 253
EXIANT COMMUNICATIONS LLC 2
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
2019-06-21 253-525-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E GIG HARBOR WA
2019-06-18 253-800-3XXX 3000–3999Assigned RAINIER CONNECT, INC. - WA 7720 TACOMA WA
2019-06-18 253-800-4XXX 4000–4999Assigned RAINIER CONNECT, INC. - WA 7720 TACOMA WA
2019-06-18 253-800-5XXX 5000–5999Assigned RAINIER CONNECT, INC. - WA 7720 TACOMA WA
2019-06-18 253-800-6XXX 6000–6999Assigned RAINIER CONNECT, INC. - WA 7720 TACOMA WA
2019-06-18 253-800-7XXX 7000–7999Assigned RAINIER CONNECT, INC. - WA 7720 TACOMA WA
2019-06-18 253-800-8XXX 8000–8999Assigned RAINIER CONNECT, INC. - WA 7720 TACOMA WA
2019-06-11 253-300-9XXX 9000–9999Assigned ONVOY, LLC - WA 483E TACOMA WA
2019-06-05 253-325-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J TACOMAWVLY WA
2019-05-16 253-800-0XXX 0000–0999Assigned FRACTEL, LLC 965H TACOMA WA
2019-05-08 253-325-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 TACOMAWVLY WA
2019-05-08 253-325-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 TACOMAWVLY WA
2019-05-08 253-325-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 TACOMAWVLY WA
2019-05-08 253-325-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 TACOMAWVLY WA
2019-05-08 253-325-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 TACOMAWVLY WA
2019-05-08 253-325-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 TACOMAWVLY WA
2019-04-17 253-325-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 TACOMAWVLY WA
2019-04-12 253-750-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SUMNER WA
2019-04-11 253-393-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J TACOMA WA
2019-04-08 253-387-2XXX 2000–2999Assigned ONVOY, LLC - WA 483E PUYALLUP WA
2019-04-08 253-387-3XXX 3000–3999Assigned ONVOY, LLC - WA 483E PUYALLUP WA
2019-04-08 253-387-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E PUYALLUP WA
2019-04-01 253-294-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 AUBURN WA
2019-04-01 253-294-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 AUBURN WA
2019-04-01 253-656-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KENT WA
2019-03-28 253-393-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 TACOMA WA
2019-03-04 253-393-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F TACOMA WA
2019-03-04 253-656-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J KENT WA
2019-02-27 253-294-2XXX 2000–2999Assigned ASTOUND BROADBAND, LLC - WA 937F AUBURN WA
2019-02-26 253-993-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 TACOMAWVLY WA
2019-02-15 253-294-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J AUBURN WA
2019-02-13 253-215-8XXX 8000–8999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F ROY WA
2019-01-29 253-393-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 TACOMA WA
2019-01-25 253-375-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 GRAHAM WA
2019-01-17 253-527-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TACOMA WA
2019-01-17 253-527-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 TACOMA WA
2019-01-17 253-527-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 TACOMA WA
2019-01-15 253-527-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F TACOMA WA
2019-01-15 253-527-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WA 006F TACOMA WA
2019-01-10 253-487-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - WA 6121 KENT WA
2019-01-08 253-289-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E AUBURN WA
2019-01-08 253-499-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E KENT WA
2019-01-08 253-499-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E KENT WA
2019-01-08 253-499-8XXX 8000–8999Assigned ONVOY, LLC - WA 483E KENT WA
2019-01-08 253-525-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E GIG HARBOR WA
2019-01-08 253-527-5XXX 5000–5999Assigned ONVOY, LLC - WA 483E TACOMA WA
2019-01-08 253-527-6XXX 6000–6999Assigned ONVOY, LLC - WA 483E TACOMA WA
2019-01-08 253-527-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E TACOMA WA
2019-01-08 253-802-7XXX 7000–7999Assigned ONVOY, LLC - WA 483E AUBURN WA
2019-01-08 253-993-4XXX 4000–4999Assigned ONVOY, LLC - WA 483E TACOMAWVLY 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.