ASN AS63 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS63?

AS63 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.

AS63 Massachusetts Institute of Technology

ASN Lookup Tool

Massachusetts Institute of Technology ll.mit.edu

US 6 Routes

AS Data

AS63

AS63 – Massachusetts Institute of Technology

AS Number	63
AS Name	LL-MI
Organization	Massachusetts Institute of Technology(mit-z)
Country	US
Website	ll.mit.edu
Number of IPv4 Routes	6
Number of IPv6 Routes	0
ASN type	EDUCATION
Registry	ARIN
Date Allocated	1986-02-24

ASN Intelligence API for production workflows

Use ASN data for AS63 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
192.5.136.0/22	AS63	Massachusetts Institute of Technology	Massachusetts Institute of Technology	1024
192.26.150.0/24	AS63	Massachusetts Institute of Technology	Massachusetts Institute of Technology	256
129.55.201.0/24	AS63	Massachusetts Institute of Technology	Massachusetts Institute of Technology	256
192.5.140.0/23	AS63	Massachusetts Institute of Technology	Massachusetts Institute of Technology	512
129.55.0.0/16	AS63	Massachusetts Institute of Technology	Massachusetts Institute of Technology	65536
192.26.149.0/24	AS63	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:       63
ASName:         LL-MI
ASHandle:       AS63
RegDate:        1986-02-24
Updated:        2023-12-04    
Ref:            https://rdap.arin.net/registry/autnum/63


OrgName:        Massachusetts Institute of Technology
OrgId:          MIT-Z
Address:        Lincoln Laboratory
City:           Lexington
StateProv:      MA
PostalCode:     02173-0073
Country:        US
RegDate:        2023-11-30
Updated:        2023-11-30
Ref:            https://rdap.arin.net/registry/entity/MIT-Z


OrgTechHandle: ROBER120-ARIN
OrgTechName:   Roberge, Russell 
OrgTechPhone:  +1-781-565-8425 
OrgTechEmail:  larry.oconnell@ll.mit.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/ROBER120-ARIN

OrgAbuseHandle: ROBER120-ARIN
OrgAbuseName:   Roberge, Russell 
OrgAbusePhone:  +1-781-565-8425 
OrgAbuseEmail:  larry.oconnell@ll.mit.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ROBER120-ARIN

RTechHandle: ZM44-ARIN
RTechName:   Lincoln Laboratory
RTechPhone:  +1-781-981-7680 
RTechEmail:  nets@ll.mit.edu
RTechRef:    https://rdap.arin.net/registry/entity/ZM44-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
AS13789	Unitas Global	US
AS10578	Harvard University	US

Upstreams

AS Number	Description	Country
AS13789	Unitas Global	US
AS10578	Harvard University	US