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 240
TON80 COMMUNICATIONS, LLC 29
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
2022-02-28 240-933-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J BUCKEYSTN MD
2022-02-25 240-966-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J WSNGTNZN16 MD
2021-11-01 240-789-5XXX 5000–5999Assigned TON80 COMMUNICATIONS, LLC 516J WSNGTNZN10 MD
2021-10-20 240-574-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J FRIENDSVL MD
2021-10-20 240-759-9XXX 9000–9999Assigned TON80 COMMUNICATIONS, LLC 516J WSNG238Z15 MD
2021-10-19 240-851-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J MCCOOLE MD
2021-10-19 240-861-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J ASHTON236 MD
2021-10-18 240-744-9XXX 9000–9999Assigned TON80 COMMUNICATIONS, LLC 516J WSHNGTNZN2 MD
2021-10-13 240-824-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J FROSTBURG MD
2021-10-11 240-834-1XXX 1000–1999Assigned TON80 COMMUNICATIONS, LLC 516J KITZMILLER MD
2021-10-07 240-809-0XXX 0000–0999Assigned TON80 COMMUNICATIONS, LLC 516J SMITHSBURG MD
2021-10-05 240-853-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J LAUREL236 MD
2021-09-30 240-820-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J ASHTON238 MD
2021-09-28 240-331-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J WSHNGTNZN3 MD
2021-09-17 240-572-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J LEONARDTN MD
2021-09-17 240-835-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J CLEAR SPG MD
2021-09-16 240-942-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J BITTINGER MD
2021-09-15 240-944-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J WESTERNPT MD
2021-09-15 240-995-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J FLINTSTONE MD
2021-09-10 240-792-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J FREDERICK MD
2021-09-09 240-798-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J GAITHERSBG MD
2021-09-09 240-827-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J LONACONING MD
2021-09-09 240-836-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J MT SAVAGE MD
2021-09-08 240-768-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J NANJEMOY MD
2021-08-25 240-273-9XXX 9000–9999Assigned TON80 COMMUNICATIONS, LLC 516J WSHNGTNZN6 MD
2021-08-19 240-769-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J KEEDYSVL MD
2021-08-05 240-746-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J BRANDYWINE MD
2021-05-13 240-266-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J WSNG236Z14 MD
2021-02-17 240-934-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J MIDDLETOWN MD

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.