ASN AS27 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS27?

AS27 is listed under University of Maryland.

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.

AS27 University of Maryland | IPGeolocation.io

ASN Lookup Tool

University of Maryland umd.edu

US 11 Routes

AS Data

AS27

AS27 – University of Maryland

AS Number	27
AS Name	UMDNET
Organization	University of Maryland(univer-262-z)
Country	US
Website	umd.edu
Number of IPv4 Routes	5
Number of IPv6 Routes	6
ASN type	EDUCATION
Registry	ARIN
Date Allocated	1984-08-28

ASN Intelligence API for production workflows

Use ASN data for AS27 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
192.54.100.0/22	AS27	University of Maryland	University of Maryland	1024
192.54.94.0/23	AS27	University of Maryland	University of Maryland	512
2605:880::/48	AS27	University of Maryland	University of Maryland	~1×10²⁴
2605:880:22::/48	AS27	University of Maryland	University of Maryland	~1×10²⁴
2605:880:20::/48	AS27	University of Maryland	University of Maryland	~1×10²⁴
129.2.0.0/16	AS27	University of Maryland	University of Maryland	65536
2605:880:1::/48	AS27	University of Maryland	University of Maryland	~1×10²⁴
192.54.96.0/21	AS27	University of Maryland	University of Maryland	2048
2605:880:30::/48	AS27	University of Maryland	University of Maryland	~1×10²⁴
2605:880:10::/48	AS27	University of Maryland	University of Maryland	~1×10²⁴

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:       27
ASName:         UMDNET
ASHandle:       AS27
RegDate:        1984-08-28
Updated:        2014-02-18    
Ref:            https://rdap.arin.net/registry/autnum/27


OrgName:        University of Maryland
OrgId:          UNIVER-262-Z
Address:        Office of Information Technology
Address:        Patuxent Building
City:           College Park
StateProv:      MD
PostalCode:     20742
Country:        US
RegDate:        2010-01-06
Updated:        2010-01-06
Ref:            https://rdap.arin.net/registry/entity/UNIVER-262-Z


OrgTechHandle: UM-ORG-ARIN
OrgTechName:   UMD DNS Admin Role Account
OrgTechPhone:  +1-301-405-9955 
OrgTechEmail:  dnstech@umd.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/UM-ORG-ARIN

OrgAbuseHandle: UARA-ARIN
OrgAbuseName:   UMD Abuse Role Account
OrgAbusePhone:  +1-301-405-8787 
OrgAbuseEmail:  abuse@umd.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/UARA-ARIN

RAbuseHandle: UM-ORG-ARIN
RAbuseName:   UMD DNS Admin Role Account
RAbusePhone:  +1-301-405-9955 
RAbuseEmail:  dnstech@umd.edu
RAbuseRef:    https://rdap.arin.net/registry/entity/UM-ORG-ARIN

RTechHandle: UM-ORG-ARIN
RTechName:   UMD DNS Admin Role Account
RTechPhone:  +1-301-405-9955 
RTechEmail:  dnstech@umd.edu
RTechRef:    https://rdap.arin.net/registry/entity/UM-ORG-ARIN

RNOCHandle: UM-ORG-ARIN
RNOCName:   UMD DNS Admin Role Account
RNOCPhone:  +1-301-405-9955 
RNOCEmail:  dnstech@umd.edu
RNOCRef:    https://rdap.arin.net/registry/entity/UM-ORG-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

dnstech@umd.edu

Abuse Contacts

abuse@umd.edu