AS11687 City of Hope National Medical Center 🇺🇸 US

City of Hope Medical Center. Announcing 4 prefixes, seen at the RIS collectors.

IPv4 prefixes

16,896 (66 × /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: AS11687
Name: City of Hope National Medical Center
Organisation: City of Hope Medical Center
Country: 🇺🇸 US
RIR: ARIN
Allocated: 1998-11-16

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

0 valid (0.0%) 0 invalid (0.0%) 4 no ROA (100.0%)

Whois

Fetched from whois.arin.net

ASNumber:       11687
ASName:         CITY-OF-HOPE
ASHandle:       AS11687
RegDate:        1998-11-16
Updated:        2012-03-02
Ref:            https://rdap.arin.net/registry/autnum/11687

OrgName:        City of Hope National Medical Center
OrgId:          CHMC-3
Address:        1500 E. Duarte Road
City:           Duarte
StateProv:      CA
PostalCode:     91010
Country:        US
RegDate:        1991-07-30
Updated:        2026-10-15
Ref:            https://rdap.arin.net/registry/entity/CHMC-3

OrgNOCHandle: ITSP-ARIN
OrgNOCName:   Information Technology Services POC
OrgNOCPhone:  +1-626-256-4673
OrgNOCEmail:  ARIN-POC@coh.org
OrgNOCRef:    https://rdap.arin.net/registry/entity/ITSP-ARIN

OrgAbuseHandle: ITSP-ARIN
OrgAbuseName:   Information Technology Services POC
OrgAbusePhone:  +1-626-256-4673
OrgAbuseEmail:  ARIN-POC@coh.org
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ITSP-ARIN

OrgTechHandle: ITSP-ARIN
OrgTechName:   Information Technology Services POC
OrgTechPhone:  +1-626-256-4673
OrgTechEmail:  ARIN-POC@coh.org
OrgTechRef:    https://rdap.arin.net/registry/entity/ITSP-ARIN

RTechHandle: ITSP-ARIN
RTechName:   Information Technology Services POC
RTechPhone:  +1-626-256-4673
RTechEmail:  ARIN-POC@coh.org
RTechRef:    https://rdap.arin.net/registry/entity/ITSP-ARIN

RAbuseHandle: ITSP-ARIN
RAbuseName:   Information Technology Services POC
RAbusePhone:  +1-626-256-4673
RAbuseEmail:  ARIN-POC@coh.org
RAbuseRef:    https://rdap.arin.net/registry/entity/ITSP-ARIN

RNOCHandle: ITSP-ARIN
RNOCName:   Information Technology Services POC
RNOCPhone:  +1-626-256-4673
RNOCEmail:  ARIN-POC@coh.org
RNOCRef:    https://rdap.arin.net/registry/entity/ITSP-ARIN