ASN AS46543 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS46543?

AS46543 is listed under University of Maryland, Baltimore.

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.

AS46543 University of Maryland, Baltimore

ASN Lookup Tool

University of Maryland, Baltimore umaryland.edu

US 1 Routes

AS Data

AS46543

AS46543 – University of Maryland, Baltimore

AS Number	46543
AS Name	UMB
Organization	University of Maryland, Baltimore(umab-1)
Country	US
Website	umaryland.edu
Number of IPv4 Routes	1
Number of IPv6 Routes	0
ASN type	EDUCATION
Registry	ARIN
Date Allocated	2008-10-10

ASN Intelligence API for production workflows

Use ASN data for AS46543 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
134.192.0.0/16	AS46543	University of Maryland, Baltimore	University of Maryland, Baltimore	65536

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:       46543
ASName:         UMB
ASHandle:       AS46543
RegDate:        2008-10-10
Updated:        2023-10-31    
Ref:            https://rdap.arin.net/registry/autnum/46543


OrgName:        University of Maryland, Baltimore
OrgId:          UMAB-1
Address:        601 W. Lombard St
City:           Baltimore
StateProv:      MD
PostalCode:     21201
Country:        US
RegDate:        1988-06-15
Updated:        2023-06-13
Ref:            https://rdap.arin.net/registry/entity/UMAB-1


OrgTechHandle: BSM40-ARIN
OrgTechName:   Smith, Bryan 
OrgTechPhone:  +1-410-706-8237 
OrgTechEmail:  bsmith@umaryland.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/BSM40-ARIN

OrgAbuseHandle: ABUSE8297-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-410-706-8337 
OrgAbuseEmail:  abuse@umaryland.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE8297-ARIN

OrgTechHandle: HONTZ1-ARIN
OrgTechName:   Hontz, Thomas 
OrgTechPhone:  +1-410-706-8339 
OrgTechEmail:  thontz@umaryland.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/HONTZ1-ARIN

RTechHandle: HONTZ1-ARIN
RTechName:   Hontz, Thomas 
RTechPhone:  +1-410-706-8339 
RTechEmail:  thontz@umaryland.edu
RTechRef:    https://rdap.arin.net/registry/entity/HONTZ1-ARIN

RAbuseHandle: BSM40-ARIN
RAbuseName:   Smith, Bryan 
RAbusePhone:  +1-410-706-8237 
RAbuseEmail:  bsmith@umaryland.edu
RAbuseRef:    https://rdap.arin.net/registry/entity/BSM40-ARIN

RTechHandle: BSM40-ARIN
RTechName:   Smith, Bryan 
RTechPhone:  +1-410-706-8237 
RTechEmail:  bsmith@umaryland.edu
RTechRef:    https://rdap.arin.net/registry/entity/BSM40-ARIN

RNOCHandle: BSM40-ARIN
RNOCName:   Smith, Bryan 
RNOCPhone:  +1-410-706-8237 
RNOCEmail:  bsmith@umaryland.edu
RNOCRef:    https://rdap.arin.net/registry/entity/BSM40-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
AS6059	University System of Maryland	US
AS10886	University of Maryland	US

Upstreams

AS Number	Description	Country
AS6059	University System of Maryland	US
AS10886	University of Maryland	US

Contacts

Email Contacts

bsmith@umaryland.edu thontz@umaryland.edu

Abuse Contacts

abuse@umaryland.edu