Summary
- Hostname
- —
- ASN
- —
- Organization
- Cogent Communications, LLC
- Network
- COGENT-149-33-16
- Range
- 149.33.0.0 - 149.33.255.255
- /24 block
- 149.33.0.0/24
- Country
- US
- Blacklists
- 0 of 14
- Abuse contact
- [email protected]
Presence of 149.33.0.6 in blacklists
| List | Status |
|---|---|
| zen.spamhaus.org | Not listed |
| bl.spamcop.net | Not listed |
| black.junkemailfilter.com | Not listed |
| multi.surbl.org | Not listed |
| dnsbl.sorbs.net | Not listed |
| b.barracudacentral.org | Not listed |
| dnsbl.tornevall.org | Not listed |
| dnsbl.httpbl.org | Not listed |
| dnsbl-1.uceprotect.net | Not listed |
| dnsbl-2.uceprotect.net | Not listed |
| dnsbl-3.uceprotect.net | Not listed |
| v4.fullbogons.cymru.com | Not listed |
| bl.blocklist.de | Not listed |
| rbl.blockedservers.com | Not listed |
What is a blacklist (RBL)?
An RBL (Real-time Blackhole List), also known as a DNSBL (DNS-based Blackhole List), is a mechanism used to fight spam by blocking e-mails coming from sources known to send spam. RBLs are databases listing the IP addresses deemed responsible for sending unsolicited e-mail. Mail server administrators use these lists to filter incoming e-mails by checking whether the sender's IP address appears in one or more RBLs. If it does, the e-mail may be rejected or subjected to additional checks.
There are different types of RBLs, each with its own criteria for listing IP addresses. Some focus on IP addresses that send spam directly, while others list IP addresses belonging to networks known to host computers infected with malware and used as bots to send spam. RBL operators keep their lists up to date through automatic and manual contributions, and IP address owners can often request removal from a list if they believe the listing is unjustified.
WHOIS data for 149.33.0.6
#
# 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.
#
# start
NetRange: 149.33.0.0 - 149.33.255.255
CIDR: 149.33.0.0/16
NetName: COGENT-149-33-16
NetHandle: NET-149-33-0-0-1
Parent: NET149 (NET-149-0-0-0-0)
NetType: Direct Allocation
OriginAS:
Organization: Cogent Communications, LLC (COGC)
RegDate: 1992-01-28
Updated: 2025-09-23
Ref: https://rdap.arin.net/registry/ip/149.33.0.0
OrgName: Cogent Communications, LLC
OrgId: COGC
Address: 2450 N Street NW
City: Washington
StateProv: DC
PostalCode: 20037
Country: US
RegDate: 2000-05-30
Updated: 2025-09-23
Comment: Geofeed https://geofeed.cogentco.com/geofeed.csv
Ref: https://rdap.arin.net/registry/entity/COGC
ReferralServer: rwhois://rwhois.cogentco.com:4321
OrgTechHandle: IPALL-ARIN
OrgTechName: IP Allocation
OrgTechPhone: +1-877-875-4311
OrgTechEmail: [email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/IPALL-ARIN
OrgNOCHandle: ZC108-ARIN
OrgNOCName: Cogent Communications
OrgNOCPhone: +1-877-875-4311
OrgNOCEmail: [email protected]
OrgNOCRef: https://rdap.arin.net/registry/entity/ZC108-ARIN
OrgAbuseHandle: COGEN-ARIN
OrgAbuseName: Cogent Abuse
OrgAbusePhone: +1-877-875-4311
OrgAbuseEmail: [email protected]
OrgAbuseRef: https://rdap.arin.net/registry/entity/COGEN-ARIN
# end
# start
NetRange: 149.33.0.0 - 149.33.127.255
CIDR: 149.33.0.0/17
NetName: 3NT-SOLUTIONS-CGNT-NET-3
NetHandle: NET-149-33-0-0-2
Parent: COGENT-149-33-16 (NET-149-33-0-0-1)
NetType: Reallocated
OriginAS:
Organization: 3NT SOLUTIONS LLP (NSL-384)
RegDate: 2025-08-11
Updated: 2025-08-11
Comment: Geofeed https://noc.3nt.com/geofeed.csv
Ref: https://rdap.arin.net/registry/ip/149.33.0.0
OrgName: 3NT SOLUTIONS LLP
OrgId: NSL-384
Address: 22 Brondesbury Park, Willesden
City: LONDON
StateProv:
PostalCode: NW6 7DL
Country: GB
RegDate: 2023-01-06
Updated: 2023-01-12
Ref: https://rdap.arin.net/registry/entity/NSL-384
OrgNOCHandle: RERE1-ARIN
OrgNOCName: Emmerich, Raul Eduardo Ribeiro
OrgNOCPhone: +442081333030
OrgNOCEmail: [email protected]
OrgNOCRef: https://rdap.arin.net/registry/entity/RERE1-ARIN
OrgAbuseHandle: ABUSE8637-ARIN
OrgAbuseName: Abuse Department
OrgAbusePhone: +442081333030
OrgAbuseEmail: [email protected]
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE8637-ARIN
OrgTechHandle: RERE1-ARIN
OrgTechName: Emmerich, Raul Eduardo Ribeiro
OrgTechPhone: +442081333030
OrgTechEmail: [email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/RERE1-ARIN
OrgDNSHandle: RERE1-ARIN
OrgDNSName: Emmerich, Raul Eduardo Ribeiro
OrgDNSPhone: +442081333030
OrgDNSEmail: [email protected]
OrgDNSRef: https://rdap.arin.net/registry/entity/RERE1-ARIN
OrgRoutingHandle: RERE1-ARIN
OrgRoutingName: Emmerich, Raul Eduardo Ribeiro
OrgRoutingPhone: +442081333030
OrgRoutingEmail: [email protected]
OrgRoutingRef: https://rdap.arin.net/registry/entity/RERE1-ARIN
# end
# start
NetRange: 149.33.0.0 - 149.33.0.255
CIDR: 149.33.0.0/24
NetName: CLOUD-NETWORK-KZ
NetHandle: NET-149-33-0-0-3
Parent: 3NT-SOLUTIONS-CGNT-NET-3 (NET-149-33-0-0-2)
NetType: Reassigned
OriginAS:
Organization: 3NT SOLUTIONS LLP (NSL-384)
RegDate: 2025-08-14
Updated: 2025-08-14
Comment: Geofeed https://noc.3nt.com/geofeed.csv
Comment:
Comment: As an internet service provider (ISP), we offer IP transit and bandwidth services that are self-managed by our customers. As a result, we do not utilize this IP space ourselves. If you encounter any issues related to spam, fraud, phishing, DDoS, port scans, or other similar problems, please do not hesitate to reach out to us with the relevant information. Our abuse email is [email protected]
Ref: https://rdap.arin.net/registry/ip/149.33.0.0
OrgName: 3NT SOLUTIONS LLP
OrgId: NSL-384
Address: 22 Brondesbury Park, Willesden
City: LONDON
StateProv:
PostalCode: NW6 7DL
Country: GB
RegDate: 2023-01-06
Updated: 2023-01-12
Ref: https://rdap.arin.net/registry/entity/NSL-384
OrgNOCHandle: RERE1-ARIN
OrgNOCName: Emmerich, Raul Eduardo Ribeiro
OrgNOCPhone: +442081333030
OrgNOCEmail: [email protected]
OrgNOCRef: https://rdap.arin.net/registry/entity/RERE1-ARIN
OrgAbuseHandle: ABUSE8637-ARIN
OrgAbuseName: Abuse Department
OrgAbusePhone: +442081333030
OrgAbuseEmail: [email protected]
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE8637-ARIN
OrgTechHandle: RERE1-ARIN
OrgTechName: Emmerich, Raul Eduardo Ribeiro
OrgTechPhone: +442081333030
OrgTechEmail: [email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/RERE1-ARIN
OrgDNSHandle: RERE1-ARIN
OrgDNSName: Emmerich, Raul Eduardo Ribeiro
OrgDNSPhone: +442081333030
OrgDNSEmail: [email protected]
OrgDNSRef: https://rdap.arin.net/registry/entity/RERE1-ARIN
OrgRoutingHandle: RERE1-ARIN
OrgRoutingName: Emmerich, Raul Eduardo Ribeiro
OrgRoutingPhone: +442081333030
OrgRoutingEmail: [email protected]
OrgRoutingRef: https://rdap.arin.net/registry/entity/RERE1-ARIN
# end
#
# 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.
#
Related domain names
Domains mentioned in the reverse DNS and the WHOIS of 149.33.0.6.
What is an IP address?
An IP address is a unique identifier on the internet that identifies a server or an internet user. Here the IP address is 149.33.0.6: it may be the unique address used to reach a website, or the unique address of an internet user.
An SMTP server (a server used to send e-mails) must have a reverse DNS record associated with its IP address