ASN Lookup Tool

City and County of Denver Denver International Airport flydenver.com US US 8 Routes

AS Data

AS40959

AS40959 – City and County of Denver Denver International Airport

AS Number 40959
AS Name HOSTMASTER
Organization City and County of Denver Denver International Airport(ccddia)
Country US
Website flydenver.com
Number of IPv4 Routes 8
Number of IPv6 Routes 0
ASN type GOVERNMENT
Registry ARIN
Date Allocated 2008-06-04

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IP Ranges

Route # IPs
169.133.32.0/24 256
198.202.200.0/24 256
63.156.62.0/24 256
198.202.201.0/24 256
169.133.32.0/23 512
198.202.203.0/24 256
198.202.202.0/24 256
65.120.176.0/24 256

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:       40959
ASName:         HOSTMASTER
ASHandle:       AS40959
RegDate:        2008-06-04
Updated:        2012-03-02    
Ref:            https://rdap.arin.net/registry/autnum/40959


OrgName:        City and County of Denver -  Denver International Airport
OrgId:          CCDDIA
Address:        8500 Pena Blvd
Address:        AOB - Telecommunications
City:           Denver
StateProv:      CO
PostalCode:     80249-6205
Country:        US
RegDate:        1993-10-13
Updated:        2020-03-20
Ref:            https://rdap.arin.net/registry/entity/CCDDIA


OrgTechHandle: DEN49-ARIN
OrgTechName:   DEN
OrgTechPhone:  +1-303-342-4938 
OrgTechEmail:  michael.keele@flydenver.com
OrgTechRef:    https://rdap.arin.net/registry/entity/DEN49-ARIN

OrgAbuseHandle: DEN49-ARIN
OrgAbuseName:   DEN
OrgAbusePhone:  +1-303-342-4938 
OrgAbuseEmail:  michael.keele@flydenver.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/DEN49-ARIN

OrgNOCHandle: DEN49-ARIN
OrgNOCName:   DEN
OrgNOCPhone:  +1-303-342-4938 
OrgNOCEmail:  michael.keele@flydenver.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/DEN49-ARIN

RNOCHandle: NOC1280-ARIN
RNOCName:   NOC
RNOCPhone:  +1-303-342-2012 
RNOCEmail:  noc@flydenver.com
RNOCRef:    https://rdap.arin.net/registry/entity/NOC1280-ARIN

RTechHandle: HOSTM257-ARIN
RTechName:   Hostmaster
RTechPhone:  +1-303-342-2012 
RTechEmail:  hostmaster@flydenver.com
RTechRef:    https://rdap.arin.net/registry/entity/HOSTM257-ARIN

RAbuseHandle: NETWO282-ARIN
RAbuseName:   Network Abuse
RAbusePhone:  +1-303-342-2012 
RAbuseEmail:  abuse@flydenver.com
RAbuseRef:    https://rdap.arin.net/registry/entity/NETWO282-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
AS3549 Level 3 Communications, Inc. (GBLX) US
AS209 CenturyLink Communications, LLC US
AS3356 Level 3 Parent, LLC US
AS6461 Zayo Bandwidth US

Upstreams

AS Number Description Country
AS209 CenturyLink Communications, LLC US
AS3356 Level 3 Parent, LLC US
AS6461 Zayo Bandwidth US

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Frequently Asked Questions

ASN AS40959 is an Autonomous System Number used to identify a network for BGP internet routing.
AS40959 is listed under City and County of Denver Denver International Airport.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
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.