NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 878
TON80 COMMUNICATIONS, LLC 50
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
2022-02-24 878-335-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J LOWELLVL PA
2022-02-24 878-736-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J MARCHAND PA
2022-02-24 878-782-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J HOOKSTOWN PA
2022-02-18 878-784-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J EPALESTINE PA
2022-02-15 878-277-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J BLAIRSVL PA
2022-02-14 878-673-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J DERRY PA
2022-01-26 878-336-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J PTTSBGZON6 PA
2022-01-25 878-246-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J CLAYSVILLE PA
2022-01-20 878-732-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J PTGSBNZN19 PA
2022-01-18 878-345-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J PTGSBNZN20 PA
2022-01-10 878-253-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J MONESSEN PA
2022-01-10 878-433-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J CLAIRTON PA
2022-01-10 878-626-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J PTTSBGZON7 PA
2022-01-10 878-723-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J PTTSBGZON3 PA
2022-01-10 878-786-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J GREENSBURG PA
2022-01-10 878-834-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J PTTSBGZON8 PA
2022-01-08 878-465-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J WEXFORD PA
2022-01-07 878-356-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J WESTNEWTON PA
2021-07-14 878-235-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J ROCHESTER PA
2021-07-01 878-379-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J WAYNESBURG PA
2021-06-14 878-768-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J VOLANT PA
2021-06-14 878-778-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J BLACKTOWN PA
2021-06-09 878-322-5XXX 5000–5999Assigned TON80 COMMUNICATIONS, LLC 516J DONORA PA
2021-06-01 878-237-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J BEAVER FLS PA
2021-06-01 878-285-5XXX 5000–5999Assigned TON80 COMMUNICATIONS, LLC 516J MTPLEASANT PA
2021-05-27 878-224-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J FORD CITY PA
2021-05-27 878-422-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J KITTANNING PA
2021-05-27 878-887-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J PARIS PA
2021-05-26 878-233-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J PRINCETON PA
2021-05-26 878-278-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J DARLINGTON PA
2021-05-26 878-288-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J BOLIVAR PA
2021-05-25 878-789-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J PETROLIA PA
2021-05-20 878-223-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J UNIONTOWN PA
2021-05-20 878-257-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J TAYLORSTN PA
2021-05-19 878-244-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J SLIPPERYRK PA
2021-05-19 878-425-9XXX 9000–9999Assigned TON80 COMMUNICATIONS, LLC 516J SAXONBURG PA
2021-05-19 878-788-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J FOXBURG PA
2021-05-18 878-377-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J SHARPSVL PA
2021-05-18 878-837-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J BENTLEYVL PA
2021-05-14 878-226-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J WASHINGTON PA
2021-05-14 878-728-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J GIBSONIA PA
2021-05-12 878-255-9XXX 9000–9999Assigned TON80 COMMUNICATIONS, LLC 516J ALIQUIPPA PA
2021-04-16 878-844-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J INDIANA PA
2021-04-14 878-599-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J PTGSBNZN14 PA
2021-04-13 878-252-9XXX 9000–9999Assigned TON80 COMMUNICATIONS, LLC 516J CRIDERSCOR PA
2021-04-13 878-598-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J AMBRIDGE PA
2021-03-30 878-677-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J NEWWLMNGTN PA
2021-03-26 878-266-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J ELDERTON PA
2021-03-24 878-678-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J BADEN PA
2021-03-10 878-783-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J AVONMORE 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.