Data as of Nov 3, 2026

37.34.40.0/21

No anonymizer space · no proxy exits in 30 days

Opnet Srl

Announcement

this exact prefix

No RPKI

Announced by

Type

Residential

Risk

0 / 100 · Low

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
37.34.40.0/21	2,048	IT-OPNET-20120103	Opnet Srl (ORG-OS382-RIPE) · IT	ALLOCATED PA	May 14, 2025	[email protected]
└ 37.34.40.0/22	1,024	LINKEM-NET	Linkem Customers	ASSIGNED PA	Jan 3, 2012	[email protected] via IT-OPNET-20120103
└ 37.34.44.0/23	512	LINKEM-NET	Linkem Customers	ASSIGNED PA	Jan 13, 2012	[email protected] via IT-OPNET-20120103
└ 37.34.46.0/23	512	LINKEM-NET	Linkem Customers	ASSIGNED PA	Jan 20, 2012	[email protected] via IT-OPNET-20120103

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Origin network

IRR

Origin	Registry	Description	Maintainer	Modified
AS198471	RIPE	LINKEM-NETWORK	LINKEM-MNT	May 6, 2020

IRR inside

Prefix	Origin	Registry	Description	Maintainer	Modified
37.34.40.0/22	AS198471	RIPE	LINKEM-NETWORK	LINKEM-MNT	May 6, 2020
37.34.44.0/22	AS198471	RIPE	LINKEM-NETWORK	LINKEM-MNT	May 6, 2020