AS103 Northwestern University

NWU-AS

Company Website

IPv4 Addresses: 149,504

Number of Peers: 10

Number of Prefixes: 28

ASN Allocated: Assigned

ASN
Prefixes
Peers
Upstreams
Graphs
World Map
Raw Whois

AS103 Summary

Regional Registry:

IANA

Allocation Status:

Assigned

Traffic Ratio:

Not Disclosed

Website:

https://www.northwestern.edu

AS103 Network

IPv4 Prefixes:

27

IPv4 Peers:

7

IPv4 Upstreams:

6

IPv6 Prefixes:

1

IPv6 Peers:

3

IPv6 Upstreams:

2

Contacts

Email Contacts:

data-network@northwestern.edu

security@northwestern.edu

Abuse Contacts:

security@northwestern.edu

Address:

Leverone Hall #G-166,

2001 Sheridan Rd,

Evanston,

IL,

60208,

US

IPv4 Prefixes
IPv6 Prefixes

Country	Announced Prefix	Description	Valid ROA	Parent Prefix	RIR
	8.28.178.0/23	Level 3 Parent, LLC		8.0.0.0/9	ARIN
	8.30.248.0/22	Level 3 Parent, LLC		8.0.0.0/9	ARIN
	38.124.97.0/24	PSINet, Inc.		41.128.0.0/14	AfriNIC
	129.105.0.0/16	Northwestern University		129.105.0.0/16	ARIN
	165.124.0.0/17	Northwestern University		165.124.0.0/16	ARIN
	165.124.17.0/24	Northwestern University		165.124.0.0/16	ARIN
	165.124.128.0/19	Northwestern University		165.124.0.0/16	ARIN
	165.124.160.0/20	Northwestern University		163.44.64.0/18	APNIC
	165.124.176.0/21	Northwestern University		165.124.0.0/16	ARIN
	165.124.184.0/23	Northwestern University		165.124.0.0/16	ARIN
	165.124.186.0/24	Northwestern University		165.124.0.0/16	ARIN
	165.124.192.0/19	Northwestern University		165.124.0.0/16	ARIN
	165.124.224.0/21	Northwestern University		165.124.0.0/16	ARIN
	165.124.232.0/22	Northwestern University		162.249.48.0/21	ARIN
	165.124.240.0/20	Northwestern University		165.124.0.0/16	ARIN
	192.5.143.0/24	Northwestern University		192.5.143.0/24	ARIN
	192.26.85.0/24	Northwestern University		192.26.85.0/24	ARIN
	192.26.86.0/23	Various Registries (Maintained by ARIN)		192.26.86.0/24	ARIN
	192.31.253.0/24	Northwestern University		192.31.253.0/24	ARIN
	199.74.64.0/18	Northwestern University		199.74.64.0/18	ARIN
	199.249.165.0/24	Northwestern University		199.249.165.0/24	ARIN
	199.249.166.0/24	Northwestern University		199.249.166.0/23	ARIN
	199.249.166.0/23	Northwestern University		199.249.166.0/23	ARIN
	199.249.167.0/24	Northwestern University		199.249.166.0/23	ARIN
	199.249.168.0/24	Northwestern University		199.249.168.0/23	ARIN
	199.249.168.0/23	Northwestern University		199.249.168.0/23	ARIN
	199.249.169.0/24	Northwestern University		199.249.168.0/23	ARIN

Country	Announced Prefix	Description	Valid ROA	Parent Prefix	RIR
	2620:10d:2000::/41	Northwestern University		2620:10d:2000::/40	ARIN

IPv4 Peers
IPv6 Peers

Country	ASN	Name	Description	IPv6
	AS174	COGENT-174	Cogent Communications
	AS2381	WISCNET1-AS	WiscNet
	AS293	ESNET	ESnet
	AS22335	MREN	Metropolitan Research and Education Network
	AS33491	COMCAST-33491	Comcast Cable Communications, LLC
	AS3356	LEVEL3	Level 3 Parent, LLC
	AS396450	INTERNET2-2	Internet2

Country	ASN	Name	Description	IPv4
	AS3356	LEVEL3	Level 3 Parent, LLC
	AS22335	MREN	Metropolitan Research and Education Network
	AS2381	WISCNET1-AS	WiscNet

IPv4 Upstreams
IPv6 Upstreams

Country	ASN	Name	Description	IPv6
	AS3356	LEVEL3	Level 3 Parent, LLC
	AS33491	COMCAST-33491	Comcast Cable Communications, LLC
	AS174	COGENT-174	Cogent Communications
	AS396450	INTERNET2-2	Internet2
	AS2381	WISCNET1-AS	WiscNet
	AS22335	MREN	Metropolitan Research and Education Network

IPv4 Upstream Graph

Country	ASN	Name	Description	IPv4
	AS3356	LEVEL3	Level 3 Parent, LLC
	AS2381	WISCNET1-AS	WiscNet

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:       103
ASName:         NWU-AS
ASHandle:       AS103
RegDate:        1987-04-09
Updated:        2012-04-02    
Ref:            https://rdap.arin.net/registry/autnum/103


OrgName:        Northwestern University
OrgId:          NORTHW-9-Z
Address:        Leverone Hall #G-166
Address:        2001 Sheridan Rd
City:           Evanston
StateProv:      IL
PostalCode:     60208
Country:        US
RegDate:        2010-01-08
Updated:        2012-05-11
Ref:            https://rdap.arin.net/registry/entity/NORTHW-9-Z


OrgTechHandle: NUNA-ARIN
OrgTechName:   Northwestern University Network Administration
OrgTechPhone:  +1-847-467-2222 
OrgTechEmail:  data-network@northwestern.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/NUNA-ARIN

OrgAbuseHandle: NUNS-ARIN
OrgAbuseName:   Northwestern University Network Security
OrgAbusePhone:  +1-847-467-2222 
OrgAbuseEmail:  security@northwestern.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NUNS-ARIN

RAbuseHandle: NUNS-ARIN
RAbuseName:   Northwestern University Network Security
RAbusePhone:  +1-847-467-2222 
RAbuseEmail:  security@northwestern.edu
RAbuseRef:    https://rdap.arin.net/registry/entity/NUNS-ARIN

RNOCHandle: NUN-ARIN
RNOCName:   Northwestern University NOC
RNOCPhone:  +1-847-467-2222 
RNOCEmail:  data-network@northwestern.edu
RNOCRef:    https://rdap.arin.net/registry/entity/NUN-ARIN

RTechHandle: NUNA-ARIN
RTechName:   Northwestern University Network Administration
RTechPhone:  +1-847-467-2222 
RTechEmail:  data-network@northwestern.edu
RTechRef:    https://rdap.arin.net/registry/entity/NUNA-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