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	Prefix	Description
	2001:48a8:68fd::/48	Merit Network Inc.
	2607:f018:fffe::/48	University of Michigan Information and Technology Services

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS237	Merit Network Inc.	✘	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS237	Merit Network Inc.	✘	✔

ASHandle:       AS177
OrgID:          UNIVER-118-Z
ASName:         UMICH-AS-1
ASNumber:       177
RegDate:        1988-04-28
Updated:        2020-01-14
Source:         ARIN



OrgID:          UNIVER-118-Z
OrgName:        University of Michigan
CanAllocate:    
Street:         IT Communications Services
Street:         4251 Plymouth Road, Suite 2-2200
City:           Ann Arbor
State/Prov:     MI
Country:        US
PostalCode:     48105-3640
RegDate:        2020-01-08
Updated:        2020-01-08
OrgAdminHandle: INA18-ARIN
OrgTechHandle:  UA11-ORG-ARIN
OrgAbuseHandle: IAI8-ARIN
Source:         ARIN





OrgAdminHandle:       INA18-ARIN
OrgAdminName:          Internet Numbers Administration
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        UA11-ORG-ARIN
OrgTechName:           UMnet Administration
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       IAI8-ARIN
OrgAbuseName:          IT Abuse Investigation
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2025-12-24T03:29:29Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as237:as-customers	36
RADB	as177:as-cone	1