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 563
ONVOY, LLC - IA 8
IMON COMMUNICATIONS, LLC - IA 3
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA 3
NEW CINGULAR WIRELESS PCS, LLC - IL 1
LEVEL 3 COMMUNICATIONS, LLC - IA 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
2020-07-21 563-758-6XXX 6000–6999Assigned FRACTEL, LLC 965H WORTHINGTN IA
2020-07-21 563-877-7XXX 7000–7999Assigned FRACTEL, LLC 965H EARLVILLE IA
2020-07-16 563-777-1XXX 1000–1999Assigned FRACTEL, LLC 965H SABULA IA
2020-07-16 563-777-2XXX 2000–2999Assigned FRACTEL, LLC 965H SABULA IA
2020-07-16 563-777-3XXX 3000–3999Assigned FRACTEL, LLC 965H SABULA IA
2020-07-15 563-500-1XXX 1000–1999Assigned ONVOY, LLC - IA 221F DUBUQUE IA
2020-07-15 563-500-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F DUBUQUE IA
2020-06-26 563-214-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DAVENPORT IA
2020-06-26 563-214-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DAVENPORT IA
2020-06-26 563-279-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DAVENPORT IA
2020-06-26 563-279-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DAVENPORT IA
2020-06-26 563-279-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IA 985E DAVENPORT IA
2020-06-18 563-286-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H DAVENPORT IA
2020-06-18 563-286-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H DAVENPORT IA
2020-06-18 563-286-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H DAVENPORT IA
2020-06-18 563-286-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H DAVENPORT IA
2020-06-12 563-331-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TIPTON IA
2020-06-12 563-661-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MAQUOKETA IA
2020-06-12 563-777-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SABULA IA
2020-06-12 563-855-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WORTHINGTN IA
2020-06-12 563-872-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BELLEVUE IA
2020-06-11 563-292-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEST UNION IA
2020-06-11 563-400-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CRESCO IA
2020-05-29 563-220-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F SABULA IA
2020-05-29 563-228-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F BELLEVUE IA
2020-05-29 563-230-3XXX 3000–3999Assigned ONVOY, LLC - IA 221F DYERSVILLE IA
2020-05-29 563-253-2XXX 2000–2999Assigned ONVOY, LLC - IA 221F TIPTON IA
2020-05-29 563-522-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F LOW MOOR IA
2020-05-29 563-635-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F LE CLAIRE IA
2020-05-29 563-649-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F ATALISSA IA
2020-05-29 563-655-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F DE WITT IA
2020-05-29 563-674-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F DELMAR IA
2020-05-29 563-677-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F CHARLOTTE IA
2020-05-29 563-724-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F MOSCOW IA
2020-05-29 563-766-7XXX 7000–7999Assigned ONVOY, LLC - IA 221F COLESBURG IA
2020-05-29 563-785-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F DURANT IA
2020-05-29 563-853-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F LUXEMBURG IA
2020-05-29 563-855-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F WORTHINGTN IA
2020-05-29 563-870-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F HOLY CROSS IA
2020-05-29 563-893-8XXX 8000–8999Assigned ONVOY, LLC - IA 221F BENNETT IA
2020-05-29 563-921-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F NEW VIENNA IA
2020-05-29 563-944-9XXX 9000–9999Assigned ONVOY, LLC - IA 221F LOWDEN IA
2020-05-29 563-945-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F STANWOOD IA
2020-05-29 563-946-5XXX 5000–5999Assigned ONVOY, LLC - IA 221F ROCHESTER IA
2020-05-28 563-363-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F MANCHESTER IA
2020-05-28 563-922-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F DELHI IA
2020-05-28 563-925-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F GREELEY IA
2020-05-28 563-926-6XXX 6000–6999Assigned ONVOY, LLC - IA 221F HOPKINTON IA
2020-05-28 563-932-4XXX 4000–4999Assigned ONVOY, LLC - IA 221F RYAN IA
2020-05-05 563-261-8XXX 8000–8999Assigned TELNYX LLC 073H MUSCATINE IA

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.