ASN Lookup Tool

Carnegie Mellon University andrew.cmu.edu US US 9 Routes

AS Data

AS9

AS9Carnegie Mellon University

AS Number 9
AS Name CMU-ROUTER
Organization Carnegie Mellon University(carneg-z)
Country US
Website andrew.cmu.edu
Number of IPv4 Routes 8
Number of IPv6 Routes 1
ASN type EDUCATION
Registry ARIN
Date Allocated 1984-04-17

ASN Intelligence API for production workflows

Use ASN data for AS9 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

IP Ranges

Route # IPs
209.129.244.0/23 512
192.12.32.0/24 256
128.237.0.0/16 65536
192.80.210.0/24 256
192.5.146.0/24 256
128.2.0.0/16 65536
2607:fb28::/32 ~79×10²⁷
204.194.28.0/22 1024
192.58.107.0/24 256

Raw Whois Response

#
# 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 1997-2026, 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 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number Description Country
AS2153 CENIC US
AS5050 Pittsburgh Supercomputing Center US
AS46887 Crown Castle Fiber LLC US
AS3356 Level 3 Parent, LLC US
AS6461 Zayo Bandwidth US
AS399855 Keystone REN, LLC US

Upstreams

AS Number Description Country
AS2153 CENIC US
AS5050 Pittsburgh Supercomputing Center US
AS46887 Crown Castle Fiber LLC US
AS3356 Level 3 Parent, LLC US
AS6461 Zayo Bandwidth US
AS399855 Keystone REN, LLC US

Contacts

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Frequently Asked Questions

ASN AS9 is an Autonomous System Number used to identify a network for BGP internet routing.
AS9 is listed under Carnegie Mellon University.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.