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 563
TON80 COMMUNICATIONS, LLC 32
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
2022-03-23 563-477-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J CLINTON IA
2022-03-23 563-842-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J HOLY CROSS IA
2022-03-14 563-266-5XXX 5000–5999Assigned TON80 COMMUNICATIONS, LLC 516J BERNARD IA
2022-03-14 563-346-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J DAVENPORT IA
2022-03-14 563-465-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J FARLEY IA
2022-02-21 563-478-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J NEW VIENNA IA
2022-02-21 563-624-5XXX 5000–5999Assigned TON80 COMMUNICATIONS, LLC 516J EPWORTH IA
2022-02-15 563-764-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J OSSIAN IA
2022-02-14 563-837-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J FREDECKSBG IA
2022-02-14 563-972-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J WADENA IA
2022-02-11 563-342-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J RYAN IA
2022-02-11 563-466-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J VOLGA IA
2022-02-11 563-637-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J MAYNARD IA
2022-02-10 563-446-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J DELHI IA
2022-02-10 563-746-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J GREELEY IA
2022-02-09 563-683-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J NEW ALBIN IA
2022-02-09 563-822-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J MANCHESTER IA
2022-02-08 563-454-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J WYOMING IA
2022-02-07 563-273-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J ONSLOW IA
2022-02-07 563-337-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J FAYETTE IA
2022-02-07 563-725-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J ELGIN IA
2022-02-01 563-778-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J ST LUCAS IA
2022-01-13 563-453-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J ELKADER IA
2022-01-13 563-832-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J GARNAVILLO IA
2021-09-17 563-626-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J HARPESFRRY IA
2021-06-29 563-298-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J GUTTENBERG IA
2021-06-22 563-924-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J LAMONT IA
2021-06-18 563-566-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J LIME SPG IA
2021-06-18 563-569-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J PROTIVIN IA
2021-06-16 563-428-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J RANDALIA IA
2021-06-03 563-644-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J DECORAH IA
2021-04-22 563-934-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J MILES IA

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.