ASN AS3 is an Autonomous System Number used to identify a network for BGP internet routing.

AS3 is listed under Massachusetts Institute of Technology.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS3 Massachusetts Institute of Technology

ASN Lookup Tool

Massachusetts Institute of Technology mit.edu

US 99 Routes

AS Data

AS3

AS3 – Massachusetts Institute of Technology

AS Number	3
AS Name	MIT-GATEWAYS
Organization	Massachusetts Institute of Technology(mit-2)
Country	US
Website	mit.edu
Number of IPv4 Routes	90
Number of IPv6 Routes	9
ASN type	EDUCATION
Registry	ARIN
Date Allocated	N/A

ASN Intelligence API for production workflows

Use ASN data for AS3 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
18.31.0.0/16	AS3	Massachusetts Institute of Technology	Massachusetts Institute of Technology	65536
18.23.0.0/16	AS3	Massachusetts Institute of Technology	Massachusetts Institute of Technology	65536
18.3.10.0/24	AS3	Massachusetts Institute of Technology	Massachusetts Institute of Technology	256
18.7.102.0/24	AS3	Massachusetts Institute of Technology	Massachusetts Institute of Technology	256
18.3.109.0/24	AS3	Massachusetts Institute of Technology	Massachusetts Institute of Technology	256
2603:4007::/32	AS3	Massachusetts Institute of Technology	Massachusetts Institute of Technology	~79×10²⁷
18.3.2.0/24	AS3	Massachusetts Institute of Technology	Massachusetts Institute of Technology	256
18.3.13.0/24	AS3	Massachusetts Institute of Technology	Massachusetts Institute of Technology	256
18.3.5.0/24	AS3	Massachusetts Institute of Technology	Massachusetts Institute of Technology	256
18.3.22.0/24	AS3	Massachusetts Institute of Technology	Massachusetts Institute of Technology	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:       3
ASName:         MIT-GATEWAYS
ASHandle:       AS3
RegDate:        
Updated:        2025-12-02    
Ref:            https://rdap.arin.net/registry/autnum/3


OrgName:        Massachusetts Institute of Technology
OrgId:          MIT-2
Address:        Room W92-167
Address:        77 Massachusetts Avenue
City:           Cambridge
StateProv:      MA
PostalCode:     02139-4307
Country:        US
RegDate:        
Updated:        2024-11-25
Ref:            https://rdap.arin.net/registry/entity/MIT-2


OrgRoutingHandle: MNO78-ARIN
OrgRoutingName:   MIT Network Operations
OrgRoutingPhone:  +1-617-253-8400 
OrgRoutingEmail:  noc@mit.edu
OrgRoutingRef:    https://rdap.arin.net/registry/entity/MNO78-ARIN

OrgTechHandle: BROWN2958-ARIN
OrgTechName:   Brown, Olu 
OrgTechPhone:  +1-617-258-7870 
OrgTechEmail:  obrown@mit.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/BROWN2958-ARIN

OrgDNSHandle: MNO78-ARIN
OrgDNSName:   MIT Network Operations
OrgDNSPhone:  +1-617-253-8400 
OrgDNSEmail:  noc@mit.edu
OrgDNSRef:    https://rdap.arin.net/registry/entity/MNO78-ARIN

OrgNOCHandle: MNO78-ARIN
OrgNOCName:   MIT Network Operations
OrgNOCPhone:  +1-617-253-8400 
OrgNOCEmail:  noc@mit.edu
OrgNOCRef:    https://rdap.arin.net/registry/entity/MNO78-ARIN

OrgTechHandle: GOMES41-ARIN
OrgTechName:   Gomes, Marco 
OrgTechPhone:  +1-617-253-0336 
OrgTechEmail:  mgomes@mit.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/GOMES41-ARIN

OrgAbuseHandle: MNS18-ARIN
OrgAbuseName:   MIT Network Security
OrgAbusePhone:  +1-617-324-1782 
OrgAbuseEmail:  arin-mit-security@mit.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/MNS18-ARIN

RAbuseHandle: MNS18-ARIN
RAbuseName:   MIT Network Security
RAbusePhone:  +1-617-324-1782 
RAbuseEmail:  arin-mit-security@mit.edu
RAbuseRef:    https://rdap.arin.net/registry/entity/MNS18-ARIN

RNOCHandle: MNO78-ARIN
RNOCName:   MIT Network Operations
RNOCPhone:  +1-617-253-8400 
RNOCEmail:  noc@mit.edu
RNOCRef:    https://rdap.arin.net/registry/entity/MNO78-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
AS63483	Skynet	US
AS3549	Level 3 Communications, Inc. (GBLX)	US
AS7015	Comcast Cable Communications, LLC	US
AS207301	Roman Sartov	UA
AS211509	Rudakov Ihor	UA
AS59404	Korkino Cable Television Networks Ltd	RU
AS1239	Cogent Communications, LLC	US
AS6939	Hurricane Electric LLC	US
AS59404	Korkino-Cable Television Networks Ltd	RU
AS268142	MAXXTELECOM LTDA	BR

Upstreams

AS Number	Description	Country
AS63483	Skynet	US
AS7015	Comcast Cable Communications, LLC	US
AS59404	Korkino Cable Television Networks Ltd	RU
AS6939	Hurricane Electric LLC	US
AS268142	MAXXTELECOM LTDA	BR
AS10578	Harvard University	US
AS174	Cogent Communications, LLC	US
AS268573	GNET TELECOM SERVI�OS COMUNICA��O LTDA	BR
AS293	ESnet	US
AS35978	GPB Communications Inc	US

Downstreams

AS Number	Description	Country
AS207301	Roman Sartov	UA
AS54755	Desert Winds Wireless Inc	US
AS22608	Public Utility District No. 1 of Okanogan County	US

Legacy Routes

45.170.62.0/24 177.70.247.0/24 168.235.163.0/24 168.235.162.0/24 193.242.190.0/24 168.235.165.0/24