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IP address details
AS104
University of Colorado at Boulder ·
IP address details
AS104
University of Colorado at Boulder ·
  • Summary IP.CC
  • Prefixes
  • Peers
  • Upstream
  • Downstream
  • Graphs
  • World Map
  • WHOIS Details
  • IX

Summary

  • As Number
    AS104
  • Org Name
    University of Colorado at Boulder
  • Country
    United States
  • Country Code
    US
  • Website
  • Regional Registry
    ARIN
  • Allocated Date
    9th April 1987
  • Allocated Status
    Assigned
  • Ipv4 Prefixes
    19
  • Ipv6 Prefixes
    3
  • Ipv4 Peers
    2
  • Ipv6 Peers
    2
  • Ipv4 Upstreams
    2
  • Ipv6 Upstreams
    2

Prefixes

There are 19 IPv4 Prefixes for this ASN.

Country
Announced Prefix
Description
Parent Prefix
RIR
United States128.138.0.0/16
University of Colorado
--ARIN
United States146.5.20.0/22
National Solar Observatory
146.5.0.0/16ARIN
United States192.12.238.0/24
University of Colorado
--ARIN
United States192.12.240.0/24
University of Colorado
--ARIN
United States192.12.241.0/24
University of Colorado
--ARIN
United States192.12.242.0/24
University of Colorado
--ARIN
United States192.12.244.0/24
University of Colorado
--ARIN
United States192.12.245.0/24
University of Colorado
--ARIN
United States198.11.16.0/20
University of Colorado Boulder
--ARIN
United States198.59.51.0/24
University of Colorado Boulder
--ARIN
United States198.59.52.0/24
University of Colorado Boulder
--ARIN
United States198.59.54.0/24
University of Colorado Boulder
198.59.54.0/23ARIN
United States198.59.55.0/24
University of Colorado Boulder
198.59.54.0/23ARIN
United States198.59.7.0/24
University of Colorado Boulder
--ARIN
United States198.59.70.0/24
University of Colorado Boulder
--ARIN
United States198.59.81.0/24
University of Colorado Boulder
--ARIN
United States198.59.82.0/24
University of Colorado Boulder
198.59.82.0/23ARIN
United States198.59.83.0/24
University of Colorado Boulder
198.59.82.0/23ARIN
United States204.228.80.0/24
University of Colorado Boulder
--ARIN
  • 1
IP Ranges API
Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
Useful for GameTech, and Advertising Technology
IP Ranges APIIP.CC
IP Ranges API
Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
Useful for GameTech, and Advertising Technology
IP Ranges APIIP.CC

Peers

There are 2 IPv4 Peers for this ASN.

Country
ASN
Description
IPv6
United StatesAS14041
University Corporation for Atmospheric Research
true
United StatesAS209
CenturyLink Communications, LLC
false
  • 1
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
ASN APIIP.CCASN DatabaseIP.CC
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
ASN APIIP.CCASN DatabaseIP.CC

Upstream

There are 2 IPv4 Upstreams for this ASN.

Country
ASN
Description
IPv6
United StatesAS14041
University Corporation for Atmospheric Research
true
United StatesAS209
CenturyLink Communications, LLC
false
  • 1
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
ASN APIIP.CCASN DatabaseIP.CC
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
ASN APIIP.CCASN DatabaseIP.CC

Downstream

There are 0 IPv4 Downstreams for this ASN.

Country
ASN
Description
IPv6
暂无数据
  • 1
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
ASN APIIP.CCASN DatabaseIP.CC
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
ASN APIIP.CCASN DatabaseIP.CC

Graphs

AS104 Combined Upstream Graph AS104 AS104 AS209 AS209 AS104->AS209 AS14041 AS14041 AS104->AS14041 AS139008 AS139008 AS104->AS139008 AS3356 AS3356 AS209->AS3356 AS14041->AS3356 AS11164 AS11164 AS14041->AS11164 AS1299 AS1299 AS14041->AS1299 AS58717 AS58717 AS139008->AS58717 AS3356->AS209 AS174 AS174 AS3356->AS174 AS3257 AS3257 AS3356->AS3257 AS1239 AS1239 AS3356->AS1239 AS2914 AS2914 AS3356->AS2914 AS3549 AS3549 AS3356->AS3549 AS2497 AS2497 AS3356->AS2497 AS7018 AS7018 AS3356->AS7018 AS701 AS701 AS3356->AS701 AS11164->AS2497 AS6461 AS6461 AS11164->AS6461 AS1299->AS7018 AS9498 AS9498 AS58717->AS9498 AS6762 AS6762 AS9498->AS6762
AS104 Combined Upstream Graph AS104 AS104 AS209 AS209 AS104->AS209 AS14041 AS14041 AS104->AS14041 AS139008 AS139008 AS104->AS139008 AS3356 AS3356 AS209->AS3356 AS14041->AS3356 AS11164 AS11164 AS14041->AS11164 AS1299 AS1299 AS14041->AS1299 AS58717 AS58717 AS139008->AS58717 AS3356->AS209 AS174 AS174 AS3356->AS174 AS3257 AS3257 AS3356->AS3257 AS1239 AS1239 AS3356->AS1239 AS2914 AS2914 AS3356->AS2914 AS3549 AS3549 AS3356->AS3549 AS2497 AS2497 AS3356->AS2497 AS7018 AS7018 AS3356->AS7018 AS701 AS701 AS3356->AS701 AS11164->AS2497 AS6461 AS6461 AS11164->AS6461 AS1299->AS7018 AS9498 AS9498 AS58717->AS9498 AS6762 AS6762 AS9498->AS6762

World Map

WHOIS Details

#
# 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 1997-2024, American Registry for Internet Numbers, Ltd.
#


ASNumber: 104
ASName: COLORADO-AS
ASHandle: AS104
RegDate: 1987-04-09
Updated: 2019-06-25
Ref: https://rdap.arin.net/registry/autnum/104


OrgName: University of Colorado at Boulder
OrgId: UCAB-2
Address: Campus Box 455
City: Boulder
StateProv: CO
PostalCode: 80309-0455
Country: US
RegDate: 1987-04-09
Updated: 2019-06-25
Ref: https://rdap.arin.net/registry/entity/UCAB-2


OrgAbuseHandle: ABUSE306-ARIN
OrgAbuseName: Abuse
OrgAbusePhone: +1-303-735-4357
OrgAbuseEmail: [email protected]
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE306-ARIN

OrgTechHandle: CUBOU-ARIN
OrgTechName: CUBoulder
OrgTechPhone: +1-303-735-4357
OrgTechEmail: [email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/CUBOU-ARIN

RAbuseHandle: ABUSE306-ARIN
RAbuseName: Abuse
RAbusePhone: +1-303-735-4357
RAbuseEmail: [email protected]
RAbuseRef: https://rdap.arin.net/registry/entity/ABUSE306-ARIN

RTechHandle: CUBOU-ARIN
RTechName: CUBoulder
RTechPhone: +1-303-735-4357
RTechEmail: [email protected]
RTechRef: https://rdap.arin.net/registry/entity/CUBOU-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 1997-2024, American Registry for Internet Numbers, Ltd.
#
#
# 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 1997-2024, American Registry for Internet Numbers, Ltd.
#


ASNumber: 104
ASName: COLORADO-AS
ASHandle: AS104
RegDate: 1987-04-09
Updated: 2019-06-25
Ref: https://rdap.arin.net/registry/autnum/104


OrgName: University of Colorado at Boulder
OrgId: UCAB-2
Address: Campus Box 455
City: Boulder
StateProv: CO
PostalCode: 80309-0455
Country: US
RegDate: 1987-04-09
Updated: 2019-06-25
Ref: https://rdap.arin.net/registry/entity/UCAB-2


OrgAbuseHandle: ABUSE306-ARIN
OrgAbuseName: Abuse
OrgAbusePhone: +1-303-735-4357
OrgAbuseEmail: [email protected]
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE306-ARIN

OrgTechHandle: CUBOU-ARIN
OrgTechName: CUBoulder
OrgTechPhone: +1-303-735-4357
OrgTechEmail: [email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/CUBOU-ARIN

RAbuseHandle: ABUSE306-ARIN
RAbuseName: Abuse
RAbusePhone: +1-303-735-4357
RAbuseEmail: [email protected]
RAbuseRef: https://rdap.arin.net/registry/entity/ABUSE306-ARIN

RTechHandle: CUBOU-ARIN
RTechName: CUBoulder
RTechPhone: +1-303-735-4357
RTechEmail: [email protected]
RTechRef: https://rdap.arin.net/registry/entity/CUBOU-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 1997-2024, American Registry for Internet Numbers, Ltd.
#

IX

Country
IX
IPv4
IPv6
Port Speed
暂无数据
  • 1
Country
IX
IPv4
IPv6
Port Speed
暂无数据
  • 1
IP.CC
Search
IP address details
AS104
University of Colorado at Boulder ·
IP address details
AS104
University of Colorado at Boulder ·

Summary

  • As Number
    AS104
  • Org Name
    University of Colorado at Boulder
  • Country
    United States
  • Country Code
    US
  • Website
  • Regional Registry
    ARIN
  • Allocated Date
    9th April 1987
  • Allocated Status
    Assigned
  • Ipv4 Prefixes
    19
  • Ipv6 Prefixes
    3
  • Ipv4 Peers
    2
  • Ipv6 Peers
    2
  • Ipv4 Upstreams
    2
  • Ipv6 Upstreams
    2

Prefixes

There are 19 IPv4 Prefixes for this ASN.

Country
Announced Prefix
Description
Parent Prefix
RIR
United States128.138.0.0/16
University of Colorado
--ARIN
United States146.5.20.0/22
National Solar Observatory
146.5.0.0/16ARIN
United States192.12.238.0/24
University of Colorado
--ARIN
United States192.12.240.0/24
University of Colorado
--ARIN
United States192.12.241.0/24
University of Colorado
--ARIN
United States192.12.242.0/24
University of Colorado
--ARIN
United States192.12.244.0/24
University of Colorado
--ARIN
United States192.12.245.0/24
University of Colorado
--ARIN
United States198.11.16.0/20
University of Colorado Boulder
--ARIN
United States198.59.51.0/24
University of Colorado Boulder
--ARIN
United States198.59.52.0/24
University of Colorado Boulder
--ARIN
United States198.59.54.0/24
University of Colorado Boulder
198.59.54.0/23ARIN
United States198.59.55.0/24
University of Colorado Boulder
198.59.54.0/23ARIN
United States198.59.7.0/24
University of Colorado Boulder
--ARIN
United States198.59.70.0/24
University of Colorado Boulder
--ARIN
United States198.59.81.0/24
University of Colorado Boulder
--ARIN
United States198.59.82.0/24
University of Colorado Boulder
198.59.82.0/23ARIN
United States198.59.83.0/24
University of Colorado Boulder
198.59.82.0/23ARIN
United States204.228.80.0/24
University of Colorado Boulder
--ARIN
  • 1
IP Ranges API
Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
Useful for GameTech, and Advertising Technology
IP Ranges APIIP.CC
IP Ranges API
Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.
Useful for GameTech, and Advertising Technology
IP Ranges APIIP.CC

Peers

There are 2 IPv4 Peers for this ASN.

Country
ASN
Description
IPv6
United StatesAS14041
University Corporation for Atmospheric Research
true
United StatesAS209
CenturyLink Communications, LLC
false
  • 1
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
ASN APIIP.CCASN DatabaseIP.CC
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
ASN APIIP.CCASN DatabaseIP.CC

Upstream

There are 2 IPv4 Upstreams for this ASN.

Country
ASN
Description
IPv6
United StatesAS14041
University Corporation for Atmospheric Research
true
United StatesAS209
CenturyLink Communications, LLC
false
  • 1
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
ASN APIIP.CCASN DatabaseIP.CC
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
ASN APIIP.CCASN DatabaseIP.CC

Downstream

There are 0 IPv4 Downstreams for this ASN.

Country
ASN
Description
IPv6
暂无数据
  • 1
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
ASN APIIP.CCASN DatabaseIP.CC
ASN data
ASN details for every IP address and every ASN’s related domains, allocation date, registry name, total number of IP addresses, and assigned prefixes.
Useful for Cybersecurity
ASN APIIP.CCASN DatabaseIP.CC

Graphs

AS104 Combined Upstream Graph AS104 AS104 AS209 AS209 AS104->AS209 AS14041 AS14041 AS104->AS14041 AS139008 AS139008 AS104->AS139008 AS3356 AS3356 AS209->AS3356 AS14041->AS3356 AS11164 AS11164 AS14041->AS11164 AS1299 AS1299 AS14041->AS1299 AS58717 AS58717 AS139008->AS58717 AS3356->AS209 AS174 AS174 AS3356->AS174 AS3257 AS3257 AS3356->AS3257 AS1239 AS1239 AS3356->AS1239 AS2914 AS2914 AS3356->AS2914 AS3549 AS3549 AS3356->AS3549 AS2497 AS2497 AS3356->AS2497 AS7018 AS7018 AS3356->AS7018 AS701 AS701 AS3356->AS701 AS11164->AS2497 AS6461 AS6461 AS11164->AS6461 AS1299->AS7018 AS9498 AS9498 AS58717->AS9498 AS6762 AS6762 AS9498->AS6762
AS104 Combined Upstream Graph AS104 AS104 AS209 AS209 AS104->AS209 AS14041 AS14041 AS104->AS14041 AS139008 AS139008 AS104->AS139008 AS3356 AS3356 AS209->AS3356 AS14041->AS3356 AS11164 AS11164 AS14041->AS11164 AS1299 AS1299 AS14041->AS1299 AS58717 AS58717 AS139008->AS58717 AS3356->AS209 AS174 AS174 AS3356->AS174 AS3257 AS3257 AS3356->AS3257 AS1239 AS1239 AS3356->AS1239 AS2914 AS2914 AS3356->AS2914 AS3549 AS3549 AS3356->AS3549 AS2497 AS2497 AS3356->AS2497 AS7018 AS7018 AS3356->AS7018 AS701 AS701 AS3356->AS701 AS11164->AS2497 AS6461 AS6461 AS11164->AS6461 AS1299->AS7018 AS9498 AS9498 AS58717->AS9498 AS6762 AS6762 AS9498->AS6762

World Map

WHOIS Details

#
# 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 1997-2024, American Registry for Internet Numbers, Ltd.
#


ASNumber: 104
ASName: COLORADO-AS
ASHandle: AS104
RegDate: 1987-04-09
Updated: 2019-06-25
Ref: https://rdap.arin.net/registry/autnum/104


OrgName: University of Colorado at Boulder
OrgId: UCAB-2
Address: Campus Box 455
City: Boulder
StateProv: CO
PostalCode: 80309-0455
Country: US
RegDate: 1987-04-09
Updated: 2019-06-25
Ref: https://rdap.arin.net/registry/entity/UCAB-2


OrgAbuseHandle: ABUSE306-ARIN
OrgAbuseName: Abuse
OrgAbusePhone: +1-303-735-4357
OrgAbuseEmail: [email protected]
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE306-ARIN

OrgTechHandle: CUBOU-ARIN
OrgTechName: CUBoulder
OrgTechPhone: +1-303-735-4357
OrgTechEmail: [email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/CUBOU-ARIN

RAbuseHandle: ABUSE306-ARIN
RAbuseName: Abuse
RAbusePhone: +1-303-735-4357
RAbuseEmail: [email protected]
RAbuseRef: https://rdap.arin.net/registry/entity/ABUSE306-ARIN

RTechHandle: CUBOU-ARIN
RTechName: CUBoulder
RTechPhone: +1-303-735-4357
RTechEmail: [email protected]
RTechRef: https://rdap.arin.net/registry/entity/CUBOU-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 1997-2024, American Registry for Internet Numbers, Ltd.
#
#
# 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 1997-2024, American Registry for Internet Numbers, Ltd.
#


ASNumber: 104
ASName: COLORADO-AS
ASHandle: AS104
RegDate: 1987-04-09
Updated: 2019-06-25
Ref: https://rdap.arin.net/registry/autnum/104


OrgName: University of Colorado at Boulder
OrgId: UCAB-2
Address: Campus Box 455
City: Boulder
StateProv: CO
PostalCode: 80309-0455
Country: US
RegDate: 1987-04-09
Updated: 2019-06-25
Ref: https://rdap.arin.net/registry/entity/UCAB-2


OrgAbuseHandle: ABUSE306-ARIN
OrgAbuseName: Abuse
OrgAbusePhone: +1-303-735-4357
OrgAbuseEmail: [email protected]
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE306-ARIN

OrgTechHandle: CUBOU-ARIN
OrgTechName: CUBoulder
OrgTechPhone: +1-303-735-4357
OrgTechEmail: [email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/CUBOU-ARIN

RAbuseHandle: ABUSE306-ARIN
RAbuseName: Abuse
RAbusePhone: +1-303-735-4357
RAbuseEmail: [email protected]
RAbuseRef: https://rdap.arin.net/registry/entity/ABUSE306-ARIN

RTechHandle: CUBOU-ARIN
RTechName: CUBoulder
RTechPhone: +1-303-735-4357
RTechEmail: [email protected]
RTechRef: https://rdap.arin.net/registry/entity/CUBOU-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 1997-2024, American Registry for Internet Numbers, Ltd.
#

IX

Country
IX
IPv4
IPv6
Port Speed
暂无数据
  • 1
Country
IX
IPv4
IPv6
Port Speed
暂无数据
  • 1
What is an ASN?
Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.
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