IP Address Information For 128.138.17.211
IP address information can vary in different details, from the IP's server and datacenters, WHOIS information, all the way to geolocation and longitude/latitude coordinates, and
goes all the way to the IP address' network organization, IP ranges, appearance in DNSBL blacklists, and more.
In this page we have collected a sample of information for the IP address 128.138.17.211.
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General information:
- IP Address: 128.138.17.211
- DNS Hostname (PTR Record): No Hostname
- DNS Nameservers: a1-153.akam.net, a11-66.akam.net, a2-67.akam.net, a20-65.akam.net, a22-67.akam.net, a3-66.akam.net
- DNS Zone: 138.128.in-addr.arpa
- Network route: 128.138.0.0/16
- Network owner: University of Colorado at Boulder
- ASN #: 104
- Part of range: 128.138.17.0/24
Geographic location:
- Country: United States - US
- City: Boulder
- State/Region: Colorado
- Longitude: -105.270554
- Latitude: 40.014992
- Timezone: -07:00
Location on the map:
Network speed information:
-
Mobile:,Download289.97MbpsUpload20.17Mbps
-
Broadband:,Download379.87MbpsUpload195.66Mbps
IP Address 128.138.17.211 WHOIS Information:
# # 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. # NetRange: 128.138.0.0 - 128.138.255.255 CIDR: 128.138.0.0/16 NetName: COLORADO NetHandle: NET-128-138-0-0-1 Parent: NET128 (NET-128-0-0-0-0) NetType: Direct Allocation OriginAS: Organization: University of Colorado (UNIVER-24) RegDate: 1986-07-14 Updated: 2021-12-14 Ref: https://rdap.arin.net/registry/ip/128.138.0.0 OrgName: University of Colorado OrgId: UNIVER-24 Address: Office of Information Technology Address: 3645 Marine Street City: Boulder StateProv: CO PostalCode: 80309-0455 Country: US RegDate: 1986-03-11 Updated: 2019-06-25 Ref: https://rdap.arin.net/registry/entity/UNIVER-24 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 # # 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. #
Reputation information:
- Sender score: None - IP doesnt send emails
Blacklists information:
- Listed in Spamhaus: no
- Listed in Barracuda: no
- Listed in Spamcop: no
- More blacklists: Full blacklists test on 128.138.17.211
Email behaviour monitor:
The IP address 128.138.17.211 appears to be an active mail server. The following charts represent data the community has gathered by observing the mail sending behaviour of this IP address during the last 10 days from 12-02-26 to 22-02-26: