NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

16 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2021-07-29 385-732-9XXX 9000–9999Assigned COMMIO, LLC 939H OGDEN UT
2021-07-28 385-458-8XXX 8000–8999Assigned ONVOY, LLC - UT 871E MORGAN UT
2021-07-28 385-458-9XXX 9000–9999Assigned ONVOY, LLC - UT 871E MORGAN UT
2021-07-27 385-433-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2021-07-27 385-433-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2021-07-27 385-433-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2021-07-27 385-433-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2021-07-27 385-433-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2021-07-27 385-433-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2021-07-27 385-699-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2021-07-27 385-699-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2021-07-27 385-699-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2021-07-27 385-699-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SALT LAKE UT
2021-07-27 385-786-0XXX 0000–0999Assigned ONVOY, LLC - UT 871E KAYSVILLE UT
2021-07-27 385-786-6XXX 6000–6999Assigned ONVOY, LLC - UT 871E KAYSVILLE UT
2021-07-27 385-786-8XXX 8000–8999Assigned ONVOY, LLC - UT 871E KAYSVILLE UT
2021-07-27 385-786-9XXX 9000–9999Assigned ONVOY, LLC - UT 871E KAYSVILLE UT
2021-07-26 385-416-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2021-07-26 385-416-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2021-07-26 385-416-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2021-07-14 385-766-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - UT 117F ALTA UT
2021-07-01 385-359-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2021-07-01 385-359-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2021-07-01 385-359-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2021-07-01 385-407-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2021-07-01 385-407-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2021-07-01 385-407-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2021-07-01 385-407-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2021-07-01 385-407-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2021-07-01 385-407-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2021-07-01 385-407-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2021-07-01 385-407-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2021-07-01 385-407-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2021-07-01 385-407-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AMERCNFORK UT
2021-07-01 385-488-8XXX 8000–8999Assigned FRACTEL, LLC 965H MIDVALE UT
2021-07-01 385-667-8XXX 8000–8999Assigned FRACTEL, LLC 965H AMERCNFORK UT
2021-07-01 385-699-9XXX 9000–9999Assigned FRACTEL, LLC 965H SALT LAKE UT
2021-07-01 385-732-5XXX 5000–5999Assigned FRACTEL, LLC 965H OGDEN UT
2021-07-01 385-786-7XXX 7000–7999Assigned FRACTEL, LLC 965H KAYSVILLE UT
2021-07-01 385-899-9XXX 9000–9999Assigned FRACTEL, LLC 965H PAYSON UT
2021-06-30 385-284-9XXX 9000–9999Assigned PEERLESS NETWORK OF UTAH, LLC - UT 526H MORGAN UT
2021-06-30 385-376-0XXX 0000–0999Assigned PEERLESS NETWORK OF UTAH, LLC - UT 526H PLEASATGRV UT
2021-06-30 385-390-4XXX 4000–4999Assigned PEERLESS NETWORK OF UTAH, LLC - UT 526H CLEARFIELD UT
2021-06-30 385-416-3XXX 3000–3999Assigned PEERLESS NETWORK OF UTAH, LLC - UT 526H KAYSVILLE UT
2021-06-24 385-359-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H AMERCNFORK UT
2021-06-24 385-390-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H CLEARFIELD UT
2021-06-24 385-402-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H BOUNTIFUL UT
2021-06-24 385-403-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H FARMINGTON UT
2021-06-24 385-416-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H KAYSVILLE UT
2021-06-24 385-766-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H ALTA UT

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.