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AS18514 M.D.C. Holdings, Inc.

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

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M.D.C. Holdings, Inc. mdch.com

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AS18514

AS18514 – M.D.C. Holdings, Inc.

AS Number	18514
AS Name	MDCH-CRP-ASN
Organization	M.D.C. Holdings, Inc.(mdcho-2)
Country	US
Website	mdch.com
Number of IPv4 Routes	0
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2006-04-17

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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:       18514
ASName:         MDCH-CRP-ASN
ASHandle:       AS18514
RegDate:        2006-04-17
Updated:        2012-03-20    
Ref:            https://rdap.arin.net/registry/autnum/18514


OrgName:        M.D.C. Holdings, Inc.
OrgId:          MDCHO-2
Address:        6550 Greenwood Plaza Blvd
City:           Centennial
StateProv:      CO
PostalCode:     80111
Country:        US
RegDate:        2006-04-06
Updated:        2011-09-24
Ref:            https://rdap.arin.net/registry/entity/MDCHO-2


OrgNOCHandle: NAN12-ARIN
OrgNOCName:   Network ARIN NOC
OrgNOCPhone:  +1-720-529-5155 
OrgNOCEmail:  ITNetworkTeam@mdch.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NAN12-ARIN

OrgTechHandle: NAT13-ARIN
OrgTechName:   Network ARIN Technical
OrgTechPhone:  +1-720-529-5155 
OrgTechEmail:  arintechnical@mdch.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NAT13-ARIN

OrgAbuseHandle: NAT13-ARIN
OrgAbuseName:   Network ARIN Technical
OrgAbusePhone:  +1-720-529-5155 
OrgAbuseEmail:  arintechnical@mdch.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NAT13-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

Frequently Asked Questions

What is ASN AS18514?

ASN AS18514 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS18514?

AS18514 is listed under M.D.C. Holdings, Inc..

What do peers, upstreams, and downstreams mean?

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 included here?

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

How can I access full ASN table data?

This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.