NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

18 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 878
ONVOY, LLC - PA 10
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 4
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 3
BANDWIDTH.COM CLEC, LLC - PA 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
2021-11-09 878-377-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SHARPSVL PA
2021-11-09 878-377-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H SHARPSVL PA
2021-11-09 878-598-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H AMBRIDGE PA
2021-11-09 878-598-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H AMBRIDGE PA
2021-11-09 878-599-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H PTGSBNZN14 PA
2021-11-09 878-599-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H PTGSBNZN14 PA
2021-11-09 878-678-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H BADEN PA
2021-11-09 878-844-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H INDIANA PA
2021-11-09 878-844-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H INDIANA PA
2021-11-09 878-895-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H UNIONTOWN PA
2021-11-09 878-895-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H UNIONTOWN PA
2021-11-05 878-246-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J CLAYSVILLE PA
2021-11-05 878-246-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J CLAYSVILLE PA
2021-11-04 878-243-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J WASHINGTON PA
2021-11-02 878-219-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H FARMINGTON PA
2021-11-02 878-219-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H FARMINGTON PA
2021-11-02 878-233-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H PRINCETON PA
2021-11-02 878-233-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H PRINCETON PA
2021-11-02 878-251-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H BLACK LICK PA
2021-11-02 878-251-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H BLACK LICK PA
2021-11-02 878-257-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H TAYLORSTN PA
2021-11-02 878-257-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H TAYLORSTN PA
2021-11-02 878-322-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H DONORA PA
2021-11-02 878-322-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H DONORA PA
2021-11-02 878-677-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H NEWWLMNGTN PA
2021-11-02 878-677-3XXX 3000–3999Assigned ONVOY, LLC - PA 547E NEWWLMNGTN PA
2021-11-02 878-688-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H HOMER CITY PA
2021-11-02 878-783-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H AVONMORE PA
2021-11-02 878-783-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H AVONMORE PA
2021-10-26 878-309-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H GREENSBURG PA
2021-10-26 878-880-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H WASHINGTON PA
2021-10-26 878-880-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H WASHINGTON PA
2021-10-25 878-239-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J ZELIENOPLE PA
2021-10-25 878-336-8XXX 8000–8999Assigned FRACTEL, LLC 965H PTTSBGZON6 PA
2021-10-25 878-465-8XXX 8000–8999Assigned FRACTEL, LLC 965H WEXFORD PA
2021-10-22 878-230-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H PTTSBGZON4 PA
2021-10-22 878-230-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H PTTSBGZON4 PA
2021-10-22 878-241-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H SMITHSFRRY PA
2021-10-22 878-241-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H SMITHSFRRY PA
2021-10-22 878-277-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H BLAIRSVL PA
2021-10-22 878-277-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H BLAIRSVL PA
2021-10-22 878-288-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H BOLIVAR PA
2021-10-22 878-288-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H BOLIVAR PA
2021-10-22 878-322-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H DONORA PA
2021-10-22 878-322-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H DONORA PA
2021-10-20 878-978-0XXX 0000–0999Assigned ONVOY, LLC - PA 547E PTTSBGZON1 PA
2021-10-18 878-978-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H PTTSBGZON1 PA
2021-10-18 878-978-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H PTTSBGZON1 PA
2021-10-18 878-978-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H PTTSBGZON1 PA
2021-10-18 878-978-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H PTTSBGZON1 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.