AS9 Carnegie Mellon University

CMU-ROUTER

IPv4 Addresses: 133,632

Number of Peers: 7

Number of Prefixes: 9

ASN Allocated: Assigned

ASN
Prefixes
Peers
Upstreams
Graphs
World Map
Raw Whois

AS9 Summary

Regional Registry:

IANA

Allocation Status:

Assigned

Traffic Ratio:

Not Disclosed

AS9 Network

IPv4 Prefixes:

IPv4 Peers:

IPv4 Upstreams:

IPv6 Prefixes:

IPv6 Peers:

IPv6 Upstreams:

Contacts

Email Contacts:

host-master@andrew.cmu.edu

abuse@andrew.cmu.edu

Abuse Contacts:

abuse@andrew.cmu.edu

Address:

Cyert Hall 215,

5000 Forbes Avenue,

Pittsburgh,

PA,

15213,

IPv4 Prefixes
IPv6 Prefixes

Announced Prefix	Description	Parent Prefix	RIR
128.2.0.0/16	Carnegie Mellon University	128.2.0.0/16	ARIN
128.237.0.0/16	Carnegie Mellon University	128.237.0.0/16	ARIN
192.5.146.0/24	Carnegie Mellon University	192.5.146.0/24	ARIN
192.12.32.0/24	Carnegie Mellon University	192.12.32.0/24	ARIN
192.58.107.0/24	Carnegie Mellon University	192.58.107.0/24	ARIN
192.80.210.0/24	Carnegie Mellon University	192.80.210.0/24	ARIN
204.194.28.0/22	Carnegie Mellon University	204.194.28.0/22	ARIN
209.129.244.0/23	CENIC	209.129.0.0/16	ARIN

Country	Announced Prefix	Description	Valid ROA	Parent Prefix	RIR
	2607:fb28::/32	Carnegie Mellon University		2607:fb28::/32	ARIN

IPv4 Peers
IPv6 Peers

ASN	Name	Description
AS399855	KEYSTONEREN	Keystone REN, LLC
AS5050	PSC-EXT	Pittsburgh Supercomputing Center
AS6461	ZAYO-6461	Zayo Bandwidth
AS3356	LEVEL3	Level 3 Parent, LLC
AS2153	CENIC-2153	CENIC

Country	ASN	Name	Description	IPv4
	AS5050	PSC-EXT	Pittsburgh Supercomputing Center
	AS399855	KEYSTONEREN	Keystone REN, LLC

IPv4 Upstreams
IPv6 Upstreams

ASN	Name	Description
AS6461	ZAYO-6461	Zayo Bandwidth
AS3356	LEVEL3	Level 3 Parent, LLC
AS399855	KEYSTONEREN	Keystone REN, LLC

IPv4 Upstream Graph

Country	ASN	Name	Description	IPv4
	AS399855	KEYSTONEREN	Keystone REN, LLC
	AS5050	PSC-EXT	Pittsburgh Supercomputing Center

IPv6 Upstream Graph

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2025, American Registry for Internet Numbers, Ltd.
#


ASNumber:       9
ASName:         CMU-ROUTER
ASHandle:       AS9
RegDate:        1984-04-17
Updated:        2012-04-02    
Ref:            https://rdap.arin.net/registry/autnum/9


OrgName:        Carnegie Mellon University
OrgId:          CARNEG-Z
Address:        Cyert Hall 215
Address:        5000 Forbes Avenue
City:           Pittsburgh
StateProv:      PA
PostalCode:     15213
Country:        US
RegDate:        2009-12-01
Updated:        2020-03-27
Ref:            https://rdap.arin.net/registry/entity/CARNEG-Z


OrgNOCHandle: CH4-ORG-ARIN
OrgNOCName:   Carnegie Mellon Hostmaster
OrgNOCPhone:  +1-412-268-4357 
OrgNOCEmail:  host-master@andrew.cmu.edu
OrgNOCRef:    https://rdap.arin.net/registry/entity/CH4-ORG-ARIN

OrgAbuseHandle: CMA3-ARIN
OrgAbuseName:   Carnegie Mellon Abuse
OrgAbusePhone:  +1-412-268-4357 
OrgAbuseEmail:  abuse@andrew.cmu.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CMA3-ARIN

OrgTechHandle: CH4-ORG-ARIN
OrgTechName:   Carnegie Mellon Hostmaster
OrgTechPhone:  +1-412-268-4357 
OrgTechEmail:  host-master@andrew.cmu.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/CH4-ORG-ARIN

RTechHandle: CH4-ORG-ARIN
RTechName:   Carnegie Mellon Hostmaster
RTechPhone:  +1-412-268-4357 
RTechEmail:  host-master@andrew.cmu.edu
RTechRef:    https://rdap.arin.net/registry/entity/CH4-ORG-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2025, American Registry for Internet Numbers, Ltd.
#

Country	IX	Name	IPv4	IPv6	Port Speed