IP / ASN / Domain Lookup

IP Lookup Result

IP Address

128.252.0.1ns00.ip.wustl.edu.

Location

United States,Missouri,St Louis

ASN

ENT

Washington University

Company

ENT

Washington University

Longitude

-90.1979

-90.1979

Latitude

38.6272

38.6272

Native IP

Residential

Residential

Native IP

Why Datacenter?

Why Datacenter?

24%Risk Score

24% Risk Score

IP Address (Decimal)

2163998721

Latency

US

-

HK

-

CA

-

GB

-

DE

-

AU

-

ASN History

ASN History	Network	AS Organization	Country	First Seen	Last Seen
AS2552	128.252.0.0/16	ENT Washington University	United States	📅 2006-05-30 20:30	📅 2025-10-13 04:46
AS25887	128.252.0.0/16	ISP St Louis Internet2 Access Consortium LLC	United States	📅 2006-06-01 14:52	📅 2017-11-01 22:51
AS206066	128.0.0.0/8	ISP Teledom LLC	Russia	📅 2017-05-04 07:14	📅 2017-05-04 14:42
AS2552	128.252.0.0/23	ENT Washington University	United States	📅 2005-05-21 05:50	📅 2006-06-01 14:52
AS25185	128.0.0.0/8	UNK Unknown	--	📅 2006-02-28 23:19	📅 2006-02-28 23:26
AS7911	128.252.0.0/16	IDC Level 3 Parent, LLC	United States	📅 2004-07-28 12:05	📅 2005-08-01 19:04
AS25887	128.252.0.0/23	ISP St Louis Internet2 Access Consortium LLC	United States	📅 2004-07-29 23:17	📅 2005-05-21 05:40
AS25887	128.252.0.0/20	ISP St Louis Internet2 Access Consortium LLC	United States	📅 2004-08-07 03:43	📅 2004-08-14 04:51
AS2914	128.252.0.0/16	ISP NTT America, Inc.	United States	📅 2001-10-27 05:48	📅 2004-07-28 11:00

Company History

Company History	Network	First Seen	Last Seen
ENT NET128	128.0.0.0/8	📅 1993-05-01 08:00	📅 2025-11-16 07:44
ISP NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK	128.252.0.0/12	📅 2024-03-11 22:59	📅 2025-11-16 05:45
ENT WASHINGTON-U	128.252.0.0/16	📅 1987-06-03 09:00	📅 2025-11-16 02:02

Registration History

Status	Network	Registry	Country	First Seen	Last Seen
	128.0.0.0/8	ARIN	--	📅 1993-05-01 08:00	📅 2025-11-16 07:44
	128.252.0.0/12	RIPE	European Union	📅 2024-03-11 22:59	📅 2025-11-16 05:45
	128.252.0.0/16	ARIN	--	📅 1987-06-03 09:00	📅 2025-11-16 02:02