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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2019-10-08 385-324-6XXX 6000–6999Assigned ONVOY, LLC - UT 871E BOUNTIFUL UT
2019-10-08 385-324-7XXX 7000–7999Assigned ONVOY, LLC - UT 871E BOUNTIFUL UT
2019-10-08 385-334-4XXX 4000–4999Assigned ONVOY, LLC - UT 871E AMERCNFORK UT
2019-10-08 385-334-5XXX 5000–5999Assigned ONVOY, LLC - UT 871E AMERCNFORK UT
2019-10-08 385-334-6XXX 6000–6999Assigned ONVOY, LLC - UT 871E AMERCNFORK UT
2019-10-08 385-338-5XXX 5000–5999Assigned ONVOY, LLC - UT 871E LEHI UT
2019-10-08 385-338-6XXX 6000–6999Assigned ONVOY, LLC - UT 871E LEHI UT
2019-10-08 385-344-4XXX 4000–4999Assigned ONVOY, LLC - UT 871E SPANIHFORK UT
2019-10-08 385-401-0XXX 0000–0999Assigned ONVOY, LLC - UT 871E SALT LAKE UT
2019-10-08 385-412-5XXX 5000–5999Assigned ONVOY, LLC - UT 871E PROVO UT
2019-10-08 385-412-6XXX 6000–6999Assigned ONVOY, LLC - UT 871E PROVO UT
2019-10-08 385-412-7XXX 7000–7999Assigned ONVOY, LLC - UT 871E PROVO UT
2019-10-08 385-412-8XXX 8000–8999Assigned ONVOY, LLC - UT 871E PROVO UT
2019-10-08 385-425-5XXX 5000–5999Assigned ONVOY, LLC - UT 871E MURRAY UT
2019-10-08 385-432-6XXX 6000–6999Assigned ONVOY, LLC - UT 871E OGDEN UT
2019-10-08 385-432-7XXX 7000–7999Assigned ONVOY, LLC - UT 871E OGDEN UT
2019-10-08 385-432-8XXX 8000–8999Assigned ONVOY, LLC - UT 871E OGDEN UT
2019-10-08 385-442-2XXX 2000–2999Assigned ONVOY, LLC - UT 871E CLEARFIELD UT
2019-10-08 385-442-5XXX 5000–5999Assigned ONVOY, LLC - UT 871E CLEARFIELD UT
2019-10-08 385-442-6XXX 6000–6999Assigned ONVOY, LLC - UT 871E CLEARFIELD UT
2019-10-08 385-442-7XXX 7000–7999Assigned ONVOY, LLC - UT 871E CLEARFIELD UT
2019-10-08 385-485-6XXX 6000–6999Assigned ONVOY, LLC - UT 871E MURRAY UT
2019-10-08 385-799-2XXX 2000–2999Assigned ONVOY, LLC - UT 871E SALT LAKE UT
2019-10-08 385-799-3XXX 3000–3999Assigned ONVOY, LLC - UT 871E SALT LAKE UT
2019-10-08 385-799-8XXX 8000–8999Assigned ONVOY, LLC - UT 871E SALT LAKE UT
2019-09-25 385-291-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2019-09-25 385-291-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2019-09-25 385-291-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2019-09-25 385-291-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2019-09-25 385-291-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2019-09-25 385-291-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2019-09-25 385-291-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2019-09-25 385-291-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2019-09-25 385-291-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2019-09-25 385-291-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2019-09-25 385-305-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2019-09-25 385-305-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2019-09-25 385-305-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2019-09-25 385-305-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2019-09-25 385-305-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2019-09-25 385-305-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2019-09-25 385-305-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2019-09-25 385-305-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2019-09-25 385-305-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2019-09-25 385-305-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2019-09-25 385-326-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 OGDEN UT
2019-09-25 385-326-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 OGDEN UT
2019-09-25 385-326-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 OGDEN UT
2019-09-25 385-343-1XXX 1000–1999Assigned EXIANT COMMUNICATIONS LLC 114J SALT LAKE UT
2019-09-18 385-332-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT 6571 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.