Data as of Nov 15, 2026

141.213.0.0/16

No anonymizer space · no proxy exits in 30 days

University of Michigan

Announcement

this exact prefix

RPKI valid

Announced by

AS36375

Type

Business

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
141.213.0.0/16	65,536	UMICH-3	University of Michigan (UNIVER-118-Z) · US	Direct Allocation	Aug 2, 1990	report-abuse@umich.edu
└ 141.213.140.192/26	64	UMICH-12927	unknown	—	—	—
└ 141.213.141.0/24	256	UMICH-717	unknown	—	—	—
└ 141.213.142.0/25	128	UMICH-1274	unknown	—	—	—
└ 141.213.142.128/25	128	UMICH-55688	unknown	—	—	—
└ 141.213.143.96/28	16	UMICH-11557	unknown	—	—	—
└ 141.213.143.112/28	16	UMICH-11558	unknown	—	—	—
└ 141.213.143.128/27	32	UMICH-1021	unknown	—	—	—
└ 141.213.143.160/28	16	UMICH-33710	unknown	—	—	—
└ 141.213.143.176/28	16	UMICH-39518	unknown	—	—	—
└ 141.213.143.192/27	32	UMICH-12040	unknown	—	—	—
└ 141.213.143.232/29	8	UMICH-19423	unknown	—	—	—
└ 141.213.144.0/22	1,024	UMICH-976	unknown	—	—	—
└ 141.213.148.0/27	32	UMICH-2984	unknown	—	—	—
└ 141.213.148.32/29	8	UMICH-15900	unknown	—	—	—
└ 141.213.148.64/26	64	UMICH-15901	unknown	—	—	—
└ 141.213.148.128/25	128	UMICH-15874	unknown	—	—	—
└ 141.213.149.0/28	16	UMICH-1080	unknown	—	—	—
└ 141.213.149.16/28	16	UMICH-16871	unknown	—	—	—
└ 141.213.149.32/28	16	UMICH-16868	unknown	—	—	—
└ 141.213.149.48/28	16	UMICH-17021	unknown	—	—	—
└ 141.213.149.64/27	32	UMICH-16869	unknown	—	—	—
└ 141.213.149.96/28	16	UMICH-19070	unknown	—	—	—
└ 141.213.149.112/28	16	UMICH-19139	unknown	—	—	—
└ 141.213.149.128/25	128	UMICH-1292	unknown	—	—	—
└ 141.213.150.0/24	256	UMICH-2985	unknown	—	—	—
└ 141.213.151.0/24	256	UMICH-2986	unknown	—	—	—
└ 141.213.152.0/27	32	UMICH-2987	unknown	—	—	—
└ 141.213.152.32/28	16	UMICH-16935	unknown	—	—	—
└ 141.213.152.64/27	32	UMICH-16936	unknown	—	—	—
└ 141.213.152.96/29	8	UMICH-17204	unknown	—	—	—
└ 141.213.152.104/29	8	UMICH-36616	unknown	—	—	—
└ 141.213.152.112/29	8	UMICH-36617	unknown	—	—	—
└ 141.213.152.120/29	8	UMICH-36618	unknown	—	—	—
└ 141.213.152.128/28	16	UMICH-15650	unknown	—	—	—
└ 141.213.152.144/29	8	UMICH-16027	unknown	—	—	—
└ 141.213.152.152/29	8	UMICH-15665	unknown	—	—	—
└ 141.213.152.160/27	32	UMICH-15652	unknown	—	—	—
└ 141.213.152.192/27	32	UMICH-15654	unknown	—	—	—
└ 141.213.152.224/27	32	UMICH-26219	unknown	—	—	—
└ 141.213.153.0/27	32	UMICH-2988	unknown	—	—	—
└ 141.213.153.32/27	32	UMICH-13573	unknown	—	—	—
└ 141.213.153.64/27	32	UMICH-2989	unknown	—	—	—
└ 141.213.153.96/29	8	UMICH-13948	unknown	—	—	—
└ 141.213.153.112/28	16	UMICH-13949	unknown	—	—	—
└ 141.213.153.128/26	64	UMICH-2990	unknown	—	—	—
└ 141.213.153.192/27	32	UMICH-2991	unknown	—	—	—
└ 141.213.153.224/27	32	UMICH-19143	unknown	—	—	—
└ 141.213.154.0/28	16	UMICH-39290	unknown	—	—	—
└ 141.213.154.16/28	16	UMICH-48373	unknown	—	—	—
└ 141.213.154.64/28	16	UMICH-14880	unknown	—	—	—
└ 141.213.154.80/29	8	UMICH-15647	unknown	—	—	—
└ 141.213.154.88/29	8	UMICH-15648	unknown	—	—	—
└ 141.213.154.96/27	32	UMICH-15642	unknown	—	—	—
└ 141.213.154.128/28	16	UMICH-2994	unknown	—	—	—
└ 141.213.154.144/28	16	UMICH-48374	unknown	—	—	—
└ 141.213.154.160/28	16	UMICH-12907	unknown	—	—	—
└ 141.213.154.176/28	16	UMICH-12908	unknown	—	—	—
└ 141.213.154.192/28	16	UMICH-12533	unknown	—	—	—
└ 141.213.154.208/29	8	UMICH-12612	unknown	—	—	—
└ 141.213.154.224/29	8	UMICH-12534	unknown	—	—	—
└ 141.213.154.232/29	8	UMICH-47731	unknown	—	—	—
└ 141.213.154.240/29	8	UMICH-23395	unknown	—	—	—
└ 141.213.154.248/29	8	UMICH-23955	unknown	—	—	—
└ 141.213.155.0/24	256	UMICH-4875	unknown	—	—	—
└ 141.213.156.0/24	256	UMICH-636	unknown	—	—	—
└ 141.213.157.0/25	128	UMICH-13407	unknown	—	—	—
└ 141.213.157.128/25	128	UMICH-18953	unknown	—	—	—
└ 141.213.158.0/24	256	UMICH-11088	unknown	—	—	—
└ 141.213.159.0/26	64	UMICH-11065	unknown	—	—	—
└ 141.213.159.64/26	64	UMICH-19149	unknown	—	—	—
└ 141.213.159.128/26	64	UMICH-19150	unknown	—	—	—
└ 141.213.159.192/28	16	UMICH-19151	unknown	—	—	—
└ 141.213.159.208/28	16	UMICH-73969	unknown	—	—	—
└ 141.213.159.224/28	16	UMICH-19155	unknown	—	—	—
└ 141.213.159.240/28	16	UMICH-19157	unknown	—	—	—
└ 141.213.160.0/21	2,048	UMICH-804	unknown	—	—	—
└ 141.213.168.0/22	1,024	UMICH-807	unknown	—	—	—
└ 141.213.172.0/22	1,024	UMICH-19387	unknown	—	—	—
└ 141.213.176.0/27	32	UMICH-812	unknown	—	—	—
└ 141.213.176.128/25	128	UMICH-59265	unknown	—	—	—
└ 141.213.177.0/28	16	UMICH-59257	unknown	—	—	—
└ 141.213.177.16/28	16	UMICH-65002	unknown	—	—	—
└ 141.213.177.64/27	32	UMICH-65001	unknown	—	—	—
└ 141.213.177.96/27	32	UMICH-66591	unknown	—	—	—
└ 141.213.177.128/26	64	UMICH-65000	unknown	—	—	—
└ 141.213.178.0/23	512	UMICH-3002	unknown	—	—	—
└ 141.213.180.0/24	256	UMICH-818	unknown	—	—	—
└ 141.213.184.0/25	128	UMICH-819	unknown	—	—	—
└ 141.213.184.128/26	64	UMICH-19904	unknown	—	—	—
└ 141.213.184.224/29	8	UMICH-26209	unknown	—	—	—
└ 141.213.184.232/29	8	UMICH-28303	unknown	—	—	—
└ 141.213.184.240/29	8	UMICH-28304	unknown	—	—	—
└ 141.213.184.248/29	8	UMICH-28305	unknown	—	—	—
└ 141.213.185.0/25	128	UMICH-19905	unknown	—	—	—
└ 141.213.185.128/26	64	UMICH-20455	unknown	—	—	—
└ 141.213.185.192/26	64	UMICH-27581	unknown	—	—	—
└ 141.213.186.0/25	128	UMICH-3003	unknown	—	—	—
└ 141.213.187.0/29	8	UMICH-19189	unknown	—	—	—
└ 141.213.187.8/29	8	UMICH-19470	unknown	—	—	—
└ 141.213.187.16/29	8	UMICH-19471	unknown	—	—	—
└ 141.213.187.24/29	8	UMICH-19472	unknown	—	—	—
└ 141.213.187.48/29	8	UMICH-19510	unknown	—	—	—
└ 141.213.187.56/29	8	UMICH-19519	unknown	—	—	—
└ 141.213.187.104/29	8	UMICH-19688	unknown	—	—	—
└ 141.213.187.112/28	16	UMICH-19529	unknown	—	—	—
└ 141.213.187.128/26	64	UMICH-19466	unknown	—	—	—
└ 141.213.187.192/26	64	UMICH-19638	unknown	—	—	—
└ 141.213.188.0/25	128	UMICH-815	unknown	—	—	—
└ 141.213.189.0/25	128	UMICH-33124	unknown	—	—	—
└ 141.213.189.192/26	64	UMICH-39334	unknown	—	—	—
└ 141.213.190.128/25	128	UMICH-28377	unknown	—	—	—
└ 141.213.191.0/25	128	UMICH-23273	unknown	—	—	—
└ 141.213.191.160/27	32	UMICH-25000	unknown	—	—	—
└ 141.213.191.192/27	32	UMICH-23940	unknown	—	—	—
└ 141.213.191.240/28	16	UMICH-24139	unknown	—	—	—
└ 141.213.192.0/27	32	UMICH-841	unknown	—	—	—
└ 141.213.192.32/28	16	UMICH-19179	unknown	—	—	—
└ 141.213.192.48/28	16	UMICH-21101	unknown	—	—	—
└ 141.213.192.64/27	32	UMICH-19178	unknown	—	—	—
└ 141.213.192.96/27	32	UMICH-23931	unknown	—	—	—
└ 141.213.192.128/26	64	UMICH-19177	unknown	—	—	—
└ 141.213.192.192/27	32	UMICH-24034	unknown	—	—	—
└ 141.213.192.224/27	32	UMICH-24390	unknown	—	—	—
└ 141.213.193.0/27	32	UMICH-15877	unknown	—	—	—
└ 141.213.193.32/27	32	UMICH-29173	unknown	—	—	—
└ 141.213.193.64/27	32	UMICH-29172	unknown	—	—	—
└ 141.213.193.96/27	32	UMICH-29253	unknown	—	—	—
└ 141.213.193.128/25	128	UMICH-29171	unknown	—	—	—
└ 141.213.194.0/24	256	UMICH-15878	unknown	—	—	—
└ 141.213.195.0/24	256	UMICH-15879	unknown	—	—	—
└ 141.213.196.0/24	256	UMICH-15880	unknown	—	—	—
└ 141.213.197.0/27	32	UMICH-15881	unknown	—	—	—
└ 141.213.197.32/27	32	UMICH-35403	unknown	—	—	—
└ 141.213.197.64/27	32	UMICH-33757	unknown	—	—	—
└ 141.213.197.96/27	32	UMICH-35162	unknown	—	—	—
└ 141.213.197.128/27	32	UMICH-33758	unknown	—	—	—
└ 141.213.197.160/27	32	UMICH-34117	unknown	—	—	—
└ 141.213.197.192/27	32	UMICH-33759	unknown	—	—	—
└ 141.213.197.224/27	32	UMICH-33761	unknown	—	—	—
└ 141.213.198.0/24	256	UMICH-15882	unknown	—	—	—
└ 141.213.199.0/26	64	UMICH-15883	unknown	—	—	—
└ 141.213.199.64/28	16	UMICH-28323	unknown	—	—	—
└ 141.213.199.80/28	16	UMICH-28330	unknown	—	—	—
└ 141.213.199.96/28	16	UMICH-28331	unknown	—	—	—
└ 141.213.199.112/28	16	UMICH-28332	unknown	—	—	—
└ 141.213.199.128/28	16	UMICH-28324	unknown	—	—	—
└ 141.213.199.144/28	16	UMICH-28681	unknown	—	—	—
└ 141.213.199.160/27	32	UMICH-28682	unknown	—	—	—
└ 141.213.199.192/27	32	UMICH-28325	unknown	—	—	—
└ 141.213.199.224/27	32	UMICH-28329	unknown	—	—	—
└ 141.213.200.0/24	256	UMICH-15884	unknown	—	—	—
└ 141.213.201.0/27	32	UMICH-15885	unknown	—	—	—
└ 141.213.201.32/27	32	UMICH-23254	unknown	—	—	—
└ 141.213.201.64/26	64	UMICH-19361	unknown	—	—	—
└ 141.213.201.128/26	64	UMICH-19317	unknown	—	—	—
└ 141.213.201.192/27	32	UMICH-19318	unknown	—	—	—
└ 141.213.201.224/27	32	UMICH-25513	unknown	—	—	—
└ 141.213.202.0/24	256	UMICH-15886	unknown	—	—	—
└ 141.213.203.0/26	64	UMICH-15887	unknown	—	—	—
└ 141.213.203.64/26	64	UMICH-19310	unknown	—	—	—
└ 141.213.203.128/26	64	UMICH-19311	unknown	—	—	—
└ 141.213.203.192/27	32	UMICH-19319	unknown	—	—	—
└ 141.213.203.224/28	16	UMICH-28193	unknown	—	—	—
└ 141.213.203.240/28	16	UMICH-28341	unknown	—	—	—
└ 141.213.204.0/26	64	UMICH-15888	unknown	—	—	—
└ 141.213.204.64/26	64	UMICH-19334	unknown	—	—	—
└ 141.213.204.128/25	128	UMICH-19309	unknown	—	—	—
└ 141.213.205.0/24	256	UMICH-15889	unknown	—	—	—
└ 141.213.206.0/24	256	UMICH-15890	unknown	—	—	—
└ 141.213.207.0/24	256	UMICH-15891	unknown	—	—	—
└ 141.213.208.0/26	64	UMICH-15876	unknown	—	—	—
└ 141.213.208.64/26	64	UMICH-46363	unknown	—	—	—
└ 141.213.208.128/26	64	UMICH-46353	unknown	—	—	—
└ 141.213.208.192/27	32	UMICH-46442	unknown	—	—	—
└ 141.213.208.224/27	32	UMICH-48368	unknown	—	—	—
└ 141.213.209.0/25	128	UMICH-55792	unknown	—	—	—
└ 141.213.209.128/25	128	UMICH-58279	unknown	—	—	—
└ 141.213.210.0/23	512	UMICH-19002	unknown	—	—	—
└ 141.213.212.0/23	512	UMICH-15895	unknown	—	—	—
└ 141.213.214.0/25	128	UMICH-15897	unknown	—	—	—
└ 141.213.214.128/25	128	UMICH-39985	unknown	—	—	—
└ 141.213.215.0/24	256	UMICH-15898	unknown	—	—	—
└ 141.213.216.0/22	1,024	UMICH-827	unknown	—	—	—
└ 141.213.220.0/26	64	UMICH-828	unknown	—	—	—
└ 141.213.220.64/26	64	UMICH-17006	unknown	—	—	—
└ 141.213.220.128/27	32	UMICH-17007	unknown	—	—	—
└ 141.213.220.160/27	32	UMICH-17009	unknown	—	—	—
└ 141.213.220.192/26	64	UMICH-17008	unknown	—	—	—
└ 141.213.221.0/25	128	UMICH-15899	unknown	—	—	—
└ 141.213.221.128/25	128	UMICH-73887	unknown	—	—	—
└ 141.213.222.0/23	512	UMICH-3010	unknown	—	—	—
└ 141.213.224.0/25	128	UMICH-4876	unknown	—	—	—
└ 141.213.224.128/25	128	UMICH-14211	unknown	—	—	—
└ 141.213.225.0/28	16	UMICH-14212	unknown	—	—	—
└ 141.213.225.16/28	16	UMICH-26438	unknown	—	—	—
└ 141.213.225.32/29	8	UMICH-26439	unknown	—	—	—
└ 141.213.225.48/28	16	UMICH-26440	unknown	—	—	—
└ 141.213.225.64/26	64	UMICH-14411	unknown	—	—	—
└ 141.213.225.128/26	64	UMICH-14213	unknown	—	—	—
└ 141.213.225.192/26	64	UMICH-35446	unknown	—	—	—

← Previous201–400 of 487 · page 2 of 3Next →

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Origin network

AS36375

Name: University of Michigan
Type: Education
Registered: Dec 16, 2005
Domain: umich.edu
Industry: Education Software
Spamhaus ASN-DROP: not listed
Tor exits: 1

RPKI

Route origin authorizations

ROA prefix	ASN	Max len	Anchor	Verdict
141.213.0.0/16	AS36375	/16	ARIN	RPKI valid

IRR

Route objects on the exact prefix

Origin	Registry	Description	Maintainer	Modified
AS36375	RADB	University of Michigan	MAINT-AS36375	Nov 13, 2023

141.213.0.0/16

Registrations in this block

Network & registry

AS36375

Who has announced this prefix

Routing history

History

Route origin authorizations

Route objects on the exact prefix

Registration for this announcement

Abuse contact