NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

6 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 564
T-MOBILE USA, INC. 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 2
LTE WIRELESS INC. 1
EXIANT COMMUNICATIONS LLC 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
2024-04-12 564-249-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MARYSVILLE WA
2024-04-08 564-243-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2024-04-08 564-243-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2024-04-08 564-249-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MARYSVILLE WA
2024-03-22 564-250-8XXX 8000–8999Assigned COMMIO, LLC 939H OLYMPIA WA
2024-03-22 564-250-9XXX 9000–9999Assigned COMMIO, LLC 939H OLYMPIA WA
2024-03-22 564-258-0XXX 0000–0999Assigned COMMIO, LLC 939H VANCOUVER WA
2024-03-22 564-258-1XXX 1000–1999Assigned COMMIO, LLC 939H VANCOUVER WA
2024-03-22 564-262-0XXX 0000–0999Assigned COMMIO, LLC 939H LONGVIEW WA
2024-03-18 564-239-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 LONGVIEW WA
2024-03-15 564-258-2XXX 2000–2999Assigned NUSO, LLC 478J VANCOUVER WA
2024-03-15 564-258-3XXX 3000–3999Assigned NUSO, LLC 478J VANCOUVER WA
2024-03-11 564-241-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CAMAS WA
2024-03-08 564-257-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BREMERTON WA
2024-03-08 564-257-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 BREMERTON WA
2024-02-26 564-249-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MARYSVILLE WA
2024-02-21 564-231-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F SOUTH BEND WA
2024-02-21 564-529-2XXX 2000–2999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F ROCHESTER WA
2024-02-16 564-237-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2024-02-16 564-258-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 VANCOUVER WA
2024-01-29 564-237-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2024-01-29 564-237-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2024-01-09 564-252-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-252-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-252-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-252-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-252-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-252-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-252-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-252-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-252-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-252-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-253-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-253-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-253-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-253-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-253-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-253-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-253-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-253-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-253-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-253-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-254-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-254-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-254-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-254-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-254-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-254-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-254-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 BREMERTON WA
2024-01-09 564-254-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 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.