NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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 947
TON80 COMMUNICATIONS, LLC 15
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
2022-02-25 947-546-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J WALLEDLAKE MI
2022-02-24 947-339-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J NORTHVILLE MI
2022-01-27 947-436-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J TROY MI
2022-01-25 947-334-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J BIRMINGHAM MI
2022-01-11 947-263-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J LAKE ORION MI
2022-01-11 947-362-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J SOUTH LYON MI
2022-01-11 947-466-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J MILFDWH LK MI
2022-01-07 947-426-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J SOUTHFIELD MI
2022-01-07 947-837-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J W BLOOMFLD MI
2022-01-06 947-245-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J DRAYTON PL MI
2021-05-25 947-447-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J ROCHESTER MI
2021-05-12 947-226-5XXX 5000–5999Assigned TON80 COMMUNICATIONS, LLC 516J AUBURN HTS MI
2021-04-13 947-327-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J ORTONVILLE MI
2021-04-08 947-376-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J TROY MI
2021-03-04 947-366-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J FARMINGTON MI

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.