IP / ASN / Domain Lookup

IP Lookup Result

IP Address

192.51.219.12

Location

Japan,Tokyo,Chiyoda City

ASN

ENT

The University of Tokyo

Company

ENT

The University of Tokyo

Longitude

139.7536

139.7536

Latitude

35.694

35.694

Native IP

DataCenter

DataCenter

Native IP

Why Datacenter?

Why Datacenter?

30%Risk Score

30% Risk Score

IP Address (Decimal)

3224623884

Latency

US

-

HK

-

CA

-

GB

-

DE

-

AU

-

ASN History

ASN History	Network	AS Organization	Country	First Seen	Last Seen
AS2501	192.51.208.0/20	ENT The University of Tokyo	Japan	📅 2003-05-05 00:58	📅 2025-10-13 04:46
AS4761	192.0.0.0/8	ISP INDOSAT Internet Network Provider	Australia	📅 2023-08-09 11:36	📅 2023-08-09 13:39
AS3352	192.32.0.0/11	ISP TELEFONICA DE ESPANA S.A.U.	Spain	📅 2007-08-23 20:00	📅 2018-06-20 08:53
AS31576	192.0.0.0/8	UNK Association GIXE	France	📅 2009-06-18 22:13	📅 2010-03-05 00:26
AS35141	192.0.0.0/8	ISP A1 Bulgaria EAD	Netherlands	📅 2008-10-13 19:39	📅 2008-10-13 19:47
AS12479	192.0.0.0/8	ISP Orange Espagne SA	Netherlands	📅 2008-04-29 16:19	📅 2008-04-29 16:21
AS29449	192.0.0.0/8	ISP ip telecom srl	Italy	📅 2006-11-09 17:59	📅 2006-11-09 18:08
AS25185	192.0.0.0/8	UNK Unknown	--	📅 2006-02-28 23:19	📅 2006-02-28 23:26
AS2501	192.51.219.0/24	ENT The University of Tokyo	Japan	📅 2002-03-12 12:13	📅 2004-07-13 14:59
AS16150	192.51.208.0/20	ISP Availo Networks AB	Sweden	📅 2002-04-10 02:11	📅 2002-04-17 13:12

Company History

Company History	Network	First Seen	Last Seen
ENT NET192	192.0.0.0/8	📅 1993-05-01 08:00	📅 2025-12-07 07:44
IDC JAPAN-INET-BLOCK4	192.51.194.0/18	📅 2015-12-02 06:27	📅 2025-12-07 07:03
ENT UTSNET-CIDR-BLK-JP	192.51.208.0/20	📅 2011-10-20 11:32	📅 2025-10-13 04:46

Registration History

Status	Network	Registry	Country	First Seen	Last Seen
	192.0.0.0/8	ARIN	--	📅 1993-05-01 08:00	📅 2025-12-07 07:44
	192.51.194.0/18	APNIC	Japan	📅 2015-12-02 06:27	📅 2025-12-07 07:03
	192.51.208.0/20	APNIC	Japan	📅 2011-10-20 11:32	📅 2025-10-13 04:46