81.31.168.0/22

Residential-proxy exits

Proxy exits

2

0.20% of its addresses · 30 days

Spread

1 of 4

/24s with at least one exit

Providers

23

selling exits here

Oct 9, 2026 – Nov 7, 2026

52 observations

More specific

Prefix	Origin	Type	Proxy exits	Holder
81.31.168.0/23 since Oct 2019	AS12660	Business		Sharif University Of Technology
81.31.168.0/24 since May 2025	AS12660	Business		Sharif University Of Technology
81.31.169.0/24 since May 2025	AS12660	Business		Sharif University Of Technology
81.31.170.0/24 since Nov 2020	AS12660	Business	2	Sharif University Of Technology
81.31.171.0/24 since Jan 2021	AS12660	Business		Sharif University Of Technology

The registry's network records over this block, widest first, each under its parent.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
81.31.160.0/19	8,192	IR-SHARIF-20020603	Sharif University Of Technology (ORG-SUOT1-RIPE) · IR	ALLOCATED PA	Dec 8, 2003	ripe@sharif.edu
└ 81.31.168.0/22	1,024	SHARIF-EDU-NET	Sharif University Of Technology	ASSIGNED PA	Sep 30, 2002	ripe@sharif.edu via IR-SHARIF-20020603

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

Announced by

Origin network

IR

Origin	Registry	Description	Maintainer	Modified
AS12660	RIPE	SHARIF-EDU-NET	SHARIF-EDU-MNT	Jan 12, 2004
AS38193 not the origin	RADB	TRANSWORLD via EMIX	MAINT-AS8966	Nov 13, 2023