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Data as of Nov 3, 2026

192.41.232.0/23

No anonymizer space · no proxy exits in 30 days

University of Michigan · reallocated from Merit Network Inc.

Announcement
this exact prefix
RPKI valid
Announced by
AS36375
Type
Business
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeHolderRPKI
192.41.232.0/22
since Jul 2007
AS237BusinessMerit Network Inc.

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.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
192.41.229.0 - 192.41.238.2552,560MICH-8Merit Network Inc. (MICH-Z) · USDirect AllocationJul 26, 1988[email protected]
└ 192.41.232.0/23512MICH-1766University of Michigan (UNIVER-118) · USReallocatedOct 19, 2020—

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
Merit Network Inc.
Handle
MICH-Z
Range
192.41.229.0 - 192.41.238.255
Registration type
Direct Allocation
Record created
Jul 26, 1988
Legacy
yes
Reallocated to
University of Michigan (UNIVER-118)
Reallocated range
192.41.232.0/23
Reallocated
Oct 19, 2020
Origin network

AS36375

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