NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

5 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 801
HD CARRIER LLC 3
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
2004-05-04 801-206-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - UT 3231 ALTA UT
2004-05-03 801-286-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MIDVALE UT
2004-05-03 801-286-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MIDVALE UT
2004-05-03 801-286-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MIDVALE UT
2004-05-03 801-286-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MIDVALE UT
2004-05-03 801-286-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MIDVALE UT
2004-05-03 801-286-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MIDVALE UT
2004-05-03 801-286-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MIDVALE UT
2004-05-03 801-286-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MIDVALE UT
2004-05-03 801-286-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MIDVALE UT
2004-05-03 801-286-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MIDVALE UT
2004-05-03 801-346-0XXX 0000–0999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-05-03 801-346-1XXX 1000–1999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-05-03 801-346-2XXX 2000–2999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-05-03 801-346-3XXX 3000–3999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-05-03 801-346-4XXX 4000–4999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-05-03 801-346-5XXX 5000–5999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-05-03 801-346-6XXX 6000–6999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-05-03 801-346-7XXX 7000–7999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-05-03 801-346-8XXX 8000–8999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-05-03 801-346-9XXX 9000–9999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-05-03 801-421-0XXX 0000–0999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-05-03 801-421-1XXX 1000–1999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-05-03 801-421-2XXX 2000–2999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-05-03 801-421-3XXX 3000–3999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-05-03 801-421-4XXX 4000–4999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-05-03 801-421-5XXX 5000–5999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-05-03 801-421-6XXX 6000–6999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-05-03 801-421-7XXX 7000–7999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-05-03 801-421-8XXX 8000–8999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-05-03 801-421-9XXX 9000–9999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-04-27 801-494-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PROVO UT
2004-04-26 801-499-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 KAYSVILLE UT
2004-04-21 801-499-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 KAYSVILLE UT
2004-04-20 801-866-1XXX 1000–1999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7176 OGDEN UT
2004-04-16 801-735-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PROVO UT
2004-04-15 801-925-4XXX 4000–4999Assigned ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 7176 PAYSON UT
2004-04-14 801-780-0XXX 0000–0999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-04-14 801-780-1XXX 1000–1999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-04-14 801-780-2XXX 2000–2999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-04-14 801-780-3XXX 3000–3999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-04-14 801-780-4XXX 4000–4999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-04-14 801-780-5XXX 5000–5999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-04-14 801-780-6XXX 6000–6999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-04-14 801-780-7XXX 7000–7999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-04-14 801-780-8XXX 8000–8999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-04-14 801-780-9XXX 9000–9999Assigned ONVOY, LLC - UT 871E MIDVALE UT
2004-04-12 801-348-0XXX 0000–0999Assigned ONVOY, LLC - UT 871E OGDEN UT
2004-04-12 801-348-1XXX 1000–1999Assigned ONVOY, LLC - UT 871E OGDEN UT
2004-04-12 801-348-2XXX 2000–2999Assigned ONVOY, LLC - UT 871E OGDEN UT

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.