ASN AS46290 is an Autonomous System Number used to identify a network for BGP internet routing.

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?

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AS46290 MtSAC | IPGeolocation.io

ASN Lookup Tool

MtSAC mtsac.edu

US 4 Routes

AS Data

AS46290

AS46290 – MtSAC

AS Number	46290
AS Name	MTSAC
Organization	MtSAC(msaccd)
Country	US
Website	mtsac.edu
Number of IPv4 Routes	4
Number of IPv6 Routes	0
ASN type	EDUCATION
Registry	ARIN
Date Allocated	2008-08-04

ASN Intelligence API for production workflows

Use ASN data for AS46290 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
140.144.128.0/17	AS46290	MtSAC	MtSAC	32768
140.144.0.0/16	AS46290	MtSAC	MtSAC	65536
140.144.126.0/24	AS46290	MtSAC	MtSAC	256
140.144.0.0/17	AS46290	MtSAC	MtSAC	32768

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:       46290
ASName:         MTSAC
ASHandle:       AS46290
RegDate:        2008-08-04
Updated:        2012-03-02
Comment:        http://www.mtsac.edu    
Ref:            https://rdap.arin.net/registry/autnum/46290


OrgName:        MtSAC
OrgId:          MSACCD
Address:        Mt. San Antonio Community College
Address:        1100 North Grand Avenue
City:           Walnut
StateProv:      CA
PostalCode:     91789
Country:        US
RegDate:        1990-04-24
Updated:        2008-07-28
Ref:            https://rdap.arin.net/registry/entity/MSACCD


OrgNOCHandle: NOC3170-ARIN
OrgNOCName:   Network Operations Center
OrgNOCPhone:  +1-909-594-5611 
OrgNOCEmail:  noc@mtsac.edu
OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC3170-ARIN

OrgAbuseHandle: NOC3170-ARIN
OrgAbuseName:   Network Operations Center
OrgAbusePhone:  +1-909-594-5611 
OrgAbuseEmail:  noc@mtsac.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NOC3170-ARIN

OrgTechHandle: NOC3170-ARIN
OrgTechName:   Network Operations Center
OrgTechPhone:  +1-909-594-5611 
OrgTechEmail:  noc@mtsac.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/NOC3170-ARIN

RAbuseHandle: NOC3170-ARIN
RAbuseName:   Network Operations Center
RAbusePhone:  +1-909-594-5611 
RAbuseEmail:  noc@mtsac.edu
RAbuseRef:    https://rdap.arin.net/registry/entity/NOC3170-ARIN

RNOCHandle: NOC3170-ARIN
RNOCName:   Network Operations Center
RNOCPhone:  +1-909-594-5611 
RNOCEmail:  noc@mtsac.edu
RNOCRef:    https://rdap.arin.net/registry/entity/NOC3170-ARIN

RTechHandle: NOC3170-ARIN
RTechName:   Network Operations Center
RTechPhone:  +1-909-594-5611 
RTechEmail:  noc@mtsac.edu
RTechRef:    https://rdap.arin.net/registry/entity/NOC3170-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
AS2152	CENIC	US

Upstreams

AS Number	Description	Country
AS2152	CENIC	US