NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

13 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 724
ONVOY, LLC - PA 10
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2
NEW CINGULAR WIRELESS PCS, LLC - IL 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
2019-03-13 724-736-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PERRYOPOLS PA
2019-03-13 724-738-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 SLIPPERYRK PA
2019-03-13 724-826-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 SPRINGDALE PA
2019-03-13 724-982-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 SHARON PA
2019-03-12 724-246-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 REPUBLIC PA
2019-03-12 724-368-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PORTERSVL PA
2019-03-12 724-585-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PORTERSVL PA
2019-03-12 724-725-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PT MARION PA
2019-03-12 724-725-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PT MARION PA
2019-03-12 724-725-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PT MARION PA
2019-03-11 724-235-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 NEWFLORNCE PA
2019-03-11 724-729-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PARIS PA
2019-03-11 724-729-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 PARIS PA
2019-03-08 724-262-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MARCHAND PA
2019-03-08 724-269-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MERCER PA
2019-03-08 724-269-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MERCER PA
2019-03-08 724-286-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MARCHAND PA
2019-03-08 724-492-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MCDONALD PA
2019-03-08 724-653-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MONESSEN PA
2019-03-08 724-653-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MONESSEN PA
2019-03-08 724-682-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MIDLAND PA
2019-03-08 724-926-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MCDONALD PA
2019-03-08 724-926-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 MCDONALD PA
2019-03-07 724-227-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 IMPERIAL PA
2019-03-07 724-264-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 GROVE CITY PA
2019-03-07 724-273-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 IMPERIAL PA
2019-03-07 724-277-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 CONNELLSVL PA
2019-03-07 724-277-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 CONNELLSVL PA
2019-03-07 724-326-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 FAYETTE CY PA
2019-03-07 724-326-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 FAYETTE CY PA
2019-03-07 724-326-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 FAYETTE CY PA
2019-03-07 724-348-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 FINLEYVL PA
2019-03-07 724-373-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 GREENVILLE PA
2019-03-07 724-373-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 GREENVILLE PA
2019-03-07 724-374-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 JEANNETTE PA
2019-03-07 724-446-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 HERMINIE PA
2019-03-07 724-486-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 CONOQNSSNG PA
2019-03-07 724-522-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 JEANNETTE PA
2019-03-07 724-572-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LATROBE PA
2019-03-07 724-572-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LATROBE PA
2019-03-07 724-623-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 GLENWILLRD PA
2019-03-07 724-626-9XXX 9000–9999Assigned CORE COMMUNICATIONS, INC. - PA 3806 CONNELLSVL PA
2019-03-07 724-638-3XXX 3000–3999Assigned CORE COMMUNICATIONS, INC. - PA 3806 GREENVILLE PA
2019-03-07 724-686-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 LATROBE PA
2019-03-07 724-688-4XXX 4000–4999Assigned CORE COMMUNICATIONS, INC. - PA 3806 HERMINIE PA
2019-03-07 724-782-2XXX 2000–2999Assigned CORE COMMUNICATIONS, INC. - PA 3806 FINLEYVL PA
2019-03-07 724-782-8XXX 8000–8999Assigned CORE COMMUNICATIONS, INC. - PA 3806 FINLEYVL PA
2019-03-07 724-784-5XXX 5000–5999Assigned CORE COMMUNICATIONS, INC. - PA 3806 GLENWILLRD PA
2019-03-07 724-784-6XXX 6000–6999Assigned CORE COMMUNICATIONS, INC. - PA 3806 GLENWILLRD PA
2019-03-07 724-784-7XXX 7000–7999Assigned CORE COMMUNICATIONS, INC. - PA 3806 GLENWILLRD PA

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.