AS104 - COLORADO-AS - University of Colorado at Boulder, US

United States
AS Number
AS104
AS Name
COLORADO-AS
Org Name
University of Colorado at Boulder
Country / Region
United States
Registry

arin

RegDate

1987-04-09

Updated

2019-06-25

AS104 Looking Glass
IPv4Prefixes

20

IPv6Prefixes

3

IPv4 NUMs

74,752

IPv6 NUMs(/64)

4,295,098,368

74,752 IPv4 Addresses
CIDR Description IP Num
128.138.0.0/24
IRR Parent Valid
University of Colorado 256
128.138.0.0/16
IRR Valid
University of Colorado 65536
146.5.20.0/22
IRR InValid
National Solar Observatory 1024
192.12.238.0/24
IRR Valid
University of Colorado 256
192.12.240.0/24
IRR Valid
University of Colorado 256
192.12.241.0/24
IRR Valid
University of Colorado 256
192.12.242.0/24
IRR Valid
University of Colorado 256
192.12.244.0/24
IRR Valid
University of Colorado 256
192.12.245.0/24
IRR Valid
University of Colorado 256
198.11.16.0/20
IRR Valid
University of Colorado Boulder 4096
198.59.7.0/24
IRR Valid
University of Colorado Boulder 256
198.59.51.0/24
IRR Valid
University of Colorado Boulder 256
198.59.52.0/24
IRR Valid
University of Colorado Boulder 256
198.59.54.0/24
IRR Valid
University of Colorado Boulder 256
198.59.55.0/24
IRR Valid
University of Colorado Boulder 256
198.59.70.0/24
IRR Valid
University of Colorado Boulder 256
198.59.81.0/24
IRR Valid
University of Colorado Boulder 256
198.59.82.0/24
IRR Valid
University of Colorado Boulder 256
198.59.83.0/24
IRR Valid
University of Colorado Boulder 256
204.228.80.0/24
IRR Valid
University of Colorado Boulder 256
CIDR Description IP NUMs(prefix /64)
2001:468:501::/48
IRR InValid
University Corporation for Atmospheric Research 65536
2406:2c0:1132::/48
IRR InValid
NEEFIT-BD NEEF IT 65536
2620:18f::/32
IRR Valid
University of Colorado Boulder 4294967296
AS Description Country / Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS209 CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC, US United States 20,083,456 1,112,933,662,720 IPv4 IPv4
AS14041 AS14041 - University Corporation for Atmospheric Research, US United States 262,656 16,777,216 IPv4 IPv4 IPv6 IPv6
AS139008 NEEFIT-AS-AP - NEEF IT LIMITED, BD Bangladesh 1,024 33,554,432 IPv6 IPv6
IP Address Domain NUMs Domains
128.138.1.11 1 hippo.colorado.edu
128.138.29.28 10 boulderinterns.com
128.138.29.88 2 confreg.colorado.edu
128.138.29.101 1 webtmatest.colorado.edu
128.138.29.188 1 hdsprojects.colorado.edu
128.138.29.190 1 webtmadev.colorado.edu
128.138.29.193 1 oncampus.colorado.edu
128.138.62.116 1 mail.mathematrader.com
128.138.64.73 1 brandonroemer.com
128.138.67.14 1 burridgecenter.colorado.edu 
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:  abuse@colorado.edu
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE306-ARIN

OrgTechHandle: CUBOU-ARIN
OrgTechName:   CUBoulder
OrgTechPhone:  +1-303-735-4357 
OrgTechEmail:  arinadmin@colorado.edu
OrgTechRef:    https://rdap.arin.net/registry/entity/CUBOU-ARIN

RAbuseHandle: ABUSE306-ARIN
RAbuseName:   Abuse
RAbusePhone:  +1-303-735-4357 
RAbuseEmail:  abuse@colorado.edu
RAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE306-ARIN

RTechHandle: CUBOU-ARIN
RTechName:   CUBoulder
RTechPhone:  +1-303-735-4357 
RTechEmail:  arinadmin@colorado.edu
RTechRef:    https://rdap.arin.net/registry/entity/CUBOU-ARIN