NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

16 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 385
LEVEL 3 COMMUNICATIONS, LLC - UT 5
BANDWIDTH.COM CLEC, LLC - UT 5
NEW CINGULAR WIRELESS PCS, LLC 4
ONVOY, LLC - UT 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2012-08-14 385-312-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F PROVO UT
2012-08-13 385-312-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2012-08-13 385-312-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2012-08-13 385-312-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2012-08-13 385-985-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2012-08-13 385-985-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2012-08-08 385-215-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2012-08-08 385-215-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2012-08-08 385-215-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2012-08-08 385-245-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 KAYSVILLE UT
2012-08-08 385-245-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 KAYSVILLE UT
2012-08-08 385-290-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2012-08-08 385-290-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2012-07-24 385-205-6XXX 6000–6999Assigned ONVOY, LLC - UT 871E OGDEN UT
2012-07-12 385-206-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 OGDEN UT
2012-07-10 385-206-0XXX 0000–0999Assigned FIRSTDIGITAL TELECOM, LLC - UT 5727 OGDEN UT
2012-07-10 385-206-1XXX 1000–1999Assigned FIRSTDIGITAL TELECOM, LLC - UT 5727 OGDEN UT
2012-07-05 385-414-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2012-07-05 385-414-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2012-07-02 385-242-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J SALT LAKE UT
2012-06-28 385-245-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - UT 3231 KAYSVILLE UT
2012-06-22 385-345-0XXX 0000–0999Assigned QWEST CORPORATION 9636 LEHI UT
2012-06-22 385-345-1XXX 1000–1999Assigned QWEST CORPORATION 9636 LEHI UT
2012-06-22 385-345-2XXX 2000–2999Assigned QWEST CORPORATION 9636 LEHI UT
2012-06-22 385-345-6XXX 6000–6999Assigned QWEST CORPORATION 9636 LEHI UT
2012-06-12 385-205-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F OGDEN UT
2012-06-11 385-229-8XXX 8000–8999Assigned FIRSTDIGITAL TELECOM, LLC - UT 5727 SALT LAKE UT
2012-06-11 385-229-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2012-06-11 385-245-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 KAYSVILLE UT
2012-06-11 385-245-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 KAYSVILLE UT
2012-06-11 385-252-3XXX 3000–3999Assigned FIRSTDIGITAL TELECOM, LLC - UT 5727 SALT LAKE UT
2012-06-11 385-252-4XXX 4000–4999Assigned FIRSTDIGITAL TELECOM, LLC - UT 5727 SALT LAKE UT
2012-06-11 385-252-5XXX 5000–5999Assigned FIRSTDIGITAL TELECOM, LLC - UT 5727 SALT LAKE UT
2012-06-11 385-252-6XXX 6000–6999Assigned FIRSTDIGITAL TELECOM, LLC - UT 5727 SALT LAKE UT
2012-06-11 385-374-2XXX 2000–2999Assigned FIRSTDIGITAL TELECOM, LLC - UT 5727 LEHI UT
2012-06-11 385-374-3XXX 3000–3999Assigned FIRSTDIGITAL TELECOM, LLC - UT 5727 LEHI UT
2012-06-11 385-414-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 SALT LAKE UT
2012-06-11 385-985-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2012-06-11 385-985-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 PROVO UT
2012-06-07 385-336-8XXX 8000–8999Assigned FIRSTDIGITAL COMMUNICATIONS, LLC 716D LEHI UT
2012-06-05 385-275-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F MIDVALE UT
2012-06-01 385-393-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - UT 3231 CLEARFIELD UT
2012-05-29 385-319-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2012-05-29 385-374-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7176 LEHI UT
2012-05-25 385-200-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F SPANIHFORK UT
2012-05-25 385-985-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F PROVO UT
2012-05-23 385-200-6XXX 6000–6999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7176 SPANIHFORK UT
2012-05-15 385-209-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2012-05-15 385-209-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2012-05-15 385-209-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT

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.