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
2023-11-06 564-248-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 VANCOUVER WA
2023-11-06 564-248-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 VANCOUVER WA
2023-11-06 564-248-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - WA 7146 VANCOUVER WA
2023-11-03 564-206-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2023-11-03 564-206-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2023-11-03 564-206-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2023-10-24 564-237-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2023-10-24 564-237-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2023-10-24 564-237-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2023-10-24 564-237-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2023-10-17 564-239-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LONGVIEW WA
2023-10-17 564-239-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 LONGVIEW WA
2023-09-26 564-245-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 SILVERDALE WA
2023-09-25 564-233-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2023-09-19 564-243-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 WHATCOMCTY WA
2023-09-15 564-215-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 PT ANGELES WA
2023-09-01 564-237-9XXX 9000–9999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F VANCOUVER WA
2023-08-28 564-228-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ABERDEEN WA
2023-08-28 564-239-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 LONGVIEW WA
2023-08-11 564-202-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2023-08-11 564-206-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2023-08-11 564-230-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2023-08-11 564-230-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2023-08-11 564-262-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LONGVIEW WA
2023-07-06 564-236-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2023-07-06 564-236-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2023-07-06 564-236-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2023-07-06 564-236-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 VANCOUVER WA
2023-06-23 564-220-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 CENTRALIA WA
2023-06-23 564-516-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 MARYSVILLE WA
2023-06-23 564-676-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OAK HARBOR WA
2023-06-02 564-242-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MARYSVILLE WA
2023-05-26 564-230-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2023-05-26 564-230-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2023-05-26 564-230-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BREMERTON WA
2023-05-22 564-236-7XXX 7000–7999Assigned BOOST SUBSCRIBERCO L.L.C. 490J VANCOUVER WA
2023-05-19 564-220-1XXX 1000–1999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CENTRALIA WA
2023-05-19 564-546-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 BELFAIR WA
2023-05-11 564-233-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2023-05-11 564-233-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2023-05-11 564-233-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 5812 OLYMPIA WA
2023-05-04 564-777-1XXX 1000–1999Assigned TELNYX LLC 073H CASTLEROCK WA
2023-05-03 564-242-8XXX 8000–8999Assigned PEERLESS NETWORK OF WASHINGTON, LLC - WA 159F MARYSVILLE WA
2023-05-01 564-230-5XXX 5000–5999Assigned BOOST SUBSCRIBERCO L.L.C. 490J BREMERTON WA
2023-05-01 564-233-6XXX 6000–6999Assigned BOOST SUBSCRIBERCO L.L.C. 490J OLYMPIA WA
2023-05-01 564-242-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J MARYSVILLE WA
2023-05-01 564-565-7XXX 7000–7999Assigned BOOST SUBSCRIBERCO L.L.C. 490J WHATCOMCTY WA
2023-05-01 564-645-5XXX 5000–5999Assigned BOOST SUBSCRIBERCO L.L.C. 490J POULSBO WA
2023-05-01 564-676-0XXX 0000–0999Assigned BOOST SUBSCRIBERCO L.L.C. 490J OAK HARBOR WA
2023-04-25 564-242-1XXX 1000–1999Assigned EON TELECOM, INC. 839J 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.