NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 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, all time — NPA 878
ONVOY SPECTRUM, LLC 131
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
2023-08-03 878-301-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H SMOCK PA
2023-08-03 878-329-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H SMITHFIELD PA
2023-08-03 878-489-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H HARRISONCY PA
2023-08-03 878-522-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H YOUNGWOOD PA
2023-08-03 878-587-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H ENONVALLEY PA
2023-08-01 878-239-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H ZELIENOPLE PA
2023-08-01 878-259-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H EXPORT PA
2023-08-01 878-278-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H DARLINGTON PA
2023-08-01 878-356-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H WESTNEWTON PA
2023-08-01 878-707-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H MARION CTR PA
2023-08-01 878-732-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H PTGSBNZN19 PA
2023-08-01 878-744-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H MCLELANDTN PA
2023-08-01 878-780-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H CLYMER PA
2023-08-01 878-808-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H FAIRCHANCE PA
2023-08-01 878-840-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H NEW SALEM PA
2023-08-01 878-868-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H NEWFLORNCE PA
2023-08-01 878-878-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H NEWBEDFORD PA
2023-08-01 878-988-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H PT MARION PA
2023-07-28 878-240-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CONNELLSVL PA
2023-07-28 878-246-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H CLAYSVILLE PA
2023-07-28 878-253-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H MONESSEN PA
2023-07-28 878-269-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H PARKWOOD PA
2023-07-28 878-335-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H LOWELLVL PA
2023-07-28 878-433-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H CLAIRTON PA
2023-07-28 878-477-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H CHARLEROI PA
2023-07-28 878-673-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H DERRY PA
2023-07-28 878-736-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H MARCHAND PA
2023-07-28 878-782-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H HOOKSTOWN PA
2023-07-28 878-784-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H EPALESTINE PA
2022-02-23 878-336-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H PTTSBGZON6 PA
2022-02-18 878-265-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H CALIFORNIA PA
2022-02-18 878-265-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CALIFORNIA PA
2022-02-10 878-247-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H BELLEVRNON PA
2022-02-10 878-247-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H BELLEVRNON PA
2022-02-10 878-322-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H DONORA PA
2022-02-10 878-322-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H DONORA PA
2022-02-10 878-677-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H NEWWLMNGTN PA
2022-02-10 878-677-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H NEWWLMNGTN PA
2022-02-09 878-238-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H LIGONIER PA
2022-02-03 878-834-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H PTTSBGZON8 PA
2022-02-03 878-834-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H PTTSBGZON8 PA
2022-02-02 878-245-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H BEAVER FLS PA
2022-02-02 878-245-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H BEAVER FLS PA
2022-01-13 878-786-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H GREENSBURG PA
2022-01-13 878-786-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H GREENSBURG PA
2022-01-11 878-626-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H PTTSBGZON7 PA
2022-01-11 878-626-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H PTTSBGZON7 PA
2021-12-28 878-242-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H NEW CASTLE PA
2021-12-28 878-242-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H NEW CASTLE PA
2021-12-28 878-336-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H PTTSBGZON6 PA

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.