AS29885 Univeristy of Chicago Hospitals & Health System 🇺🇸 US

Announcing 4 prefixes, seen at the RIS collectors.

IPv4 prefixes

131,328 (513 × /24)

IPv6 prefixes

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

ASes reachable through it

Registry and operator data

AS number: AS29885
Name: Univeristy of Chicago Hospitals & Health System
Organisation: Univeristy of Chicago Hospitals & Health System
Country: 🇺🇸 US
RIR: ARIN
Allocated: 2003-05-29

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

1 valid (25.0%) 0 invalid (0.0%) 3 no ROA (75.0%)

Whois

Fetched from whois.arin.net

ASNumber:       29885
ASName:         UCHHS-AS
ASHandle:       AS29885
RegDate:        2003-05-29
Updated:        2012-03-02
Ref:            https://rdap.arin.net/registry/autnum/29885

OrgName:        Univeristy of Chicago Hospitals & Health System
OrgId:          UCHHS
Address:        7955 South Cass Avenue
City:           Darien
StateProv:      IL
PostalCode:     60651
Country:        US
RegDate:        2003-04-24
Updated:        2025-12-08
Ref:            https://rdap.arin.net/registry/entity/UCHHS

OrgAbuseHandle: GRAML9-ARIN
OrgAbuseName:   Gramlick, Martin
OrgAbusePhone:  +1-773-834-0008
OrgAbuseEmail:  martin.gramlick@uchicagomedicine.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/GRAML9-ARIN

OrgTechHandle: GRAML9-ARIN
OrgTechName:   Gramlick, Martin
OrgTechPhone:  +1-773-834-0008
OrgTechEmail:  martin.gramlick@uchicagomedicine.org
OrgTechRef:    https://rdap.arin.net/registry/entity/GRAML9-ARIN