NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 240-652

This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The ten 1,000-number thousand-blocks inside prefix 240-652 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 240 blocks

Most active assignees, all time — NPA 240
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 5
TERRA NOVA TELECOM INC. 1
TELNYX LLC 1
PEERLESS NETWORK OF MARYLAND, LLC 1
ONVOY, LLC - MD 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
2017-04-17 240-652-0XXX 0000–0999Assigned TELNYX LLC 073H MECHANCSVL MD
— 240-652-1XXX 1000–1999Reserved MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MECHANCSVL MD
2012-08-15 240-652-2XXX 2000–2999Assigned ONVOY, LLC - MD 876D MECHANCSVL MD
2015-09-17 240-652-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - DC 4036 MECHANCSVL MD
2005-07-20 240-652-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MECHANCSVL MD
2005-07-20 240-652-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MECHANCSVL MD
— 240-652-6XXX 6000–6999Reserved MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MECHANCSVL MD
2013-10-02 240-652-7XXX 7000–7999Assigned PEERLESS NETWORK OF MARYLAND, LLC 568G MECHANCSVL MD
2024-05-29 240-652-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J MECHANCSVL MD
2005-07-20 240-652-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MECHANCSVL MD

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.