Summary
- Hostname
- ns-1455.awsdns-53.org
- ASN
- —
- Organization
- Amazon.com, Inc.
- Network
- AMAZON-05
- Range
- 205.251.192.0 - 205.251.255.255
- /24 block
- 205.251.197.0/24
- Country
- US
- Blacklists
- 0 of 14
- Abuse contact
- [email protected]
Presence of 205.251.197.175 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 205.251.197.175
#
# 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: 205.251.192.0 - 205.251.255.255
CIDR: 205.251.192.0/18
NetName: AMAZON-05
NetHandle: NET-205-251-192-0-1
Parent: NET205 (NET-205-0-0-0-0)
NetType: Direct Allocation
OriginAS:
Organization: Amazon.com, Inc. (AMAZON-4)
RegDate: 2010-08-27
Updated: 2021-07-01
Comment: -----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
Ref: https://rdap.arin.net/registry/ip/205.251.192.0
OrgName: Amazon.com, Inc.
OrgId: AMAZON-4
Address: 1918 8th Ave
City: SEATTLE
StateProv: WA
PostalCode: 98101-1244
Country: US
RegDate: 1995-01-23
Updated: 2026-09-24
Ref: https://rdap.arin.net/registry/entity/AMAZON-4
OrgDNSHandle: DNS1131-ARIN
OrgDNSName: DNS
OrgDNSPhone: +1-202-555-0000
OrgDNSEmail: [email protected]
OrgDNSRef: https://rdap.arin.net/registry/entity/DNS1131-ARIN
OrgRoutingHandle: IPROU3-ARIN
OrgRoutingName: IP Routing
OrgRoutingPhone: +1-206-555-0000
OrgRoutingEmail: [email protected]
OrgRoutingRef: https://rdap.arin.net/registry/entity/IPROU3-ARIN
OrgAbuseHandle: AEA8-ARIN
OrgAbuseName: Amazon EC2 Abuse
OrgAbusePhone: +1-206-555-0000
OrgAbuseEmail: [email protected]
OrgAbuseRef: https://rdap.arin.net/registry/entity/AEA8-ARIN
OrgTechHandle: ANO24-ARIN
OrgTechName: Amazon EC2 Network Operations
OrgTechPhone: +1-206-555-0000
OrgTechEmail: [email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/ANO24-ARIN
OrgRoutingHandle: ARMP-ARIN
OrgRoutingName: AWS RPKI Management POC
OrgRoutingPhone: +1-206-555-0000
OrgRoutingEmail: [email protected]
OrgRoutingRef: https://rdap.arin.net/registry/entity/ARMP-ARIN
OrgNOCHandle: AANO1-ARIN
OrgNOCName: Amazon AWS Network Operations
OrgNOCPhone: +1-206-555-0000
OrgNOCEmail: [email protected]
OrgNOCRef: https://rdap.arin.net/registry/entity/AANO1-ARIN
RNOCHandle: ROLEA19-ARIN
RNOCName: Role Account
RNOCPhone: +1-206-266-4064
RNOCEmail: [email protected]
RNOCRef: https://rdap.arin.net/registry/entity/ROLEA19-ARIN
RAbuseHandle: ROLEA19-ARIN
RAbuseName: Role Account
RAbusePhone: +1-206-266-4064
RAbuseEmail: [email protected]
RAbuseRef: https://rdap.arin.net/registry/entity/ROLEA19-ARIN
RTechHandle: ROLEA19-ARIN
RTechName: Role Account
RTechPhone: +1-206-266-4064
RTechEmail: [email protected]
RTechRef: https://rdap.arin.net/registry/entity/ROLEA19-ARIN
# end
# start
NetRange: 205.251.192.0 - 205.251.199.255
CIDR: 205.251.192.0/21
NetName: AMAZON-BYOIP
NetHandle: NET-205-251-192-0-2
Parent: AMAZON-05 (NET-205-251-192-0-1)
NetType: Reallocated
OriginAS:
Organization: Amazon Data Services Northern Virginia (ADSN-1)
RegDate: 2022-01-11
Updated: 2022-01-11
Comment: -----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
Ref: https://rdap.arin.net/registry/ip/205.251.192.0
OrgName: Amazon Data Services Northern Virginia
OrgId: ADSN-1
Address: 13200 Woodland Park Road
City: Herndon
StateProv: VA
PostalCode: 20171
Country: US
RegDate: 2018-04-25
Updated: 2025-08-14
Ref: https://rdap.arin.net/registry/entity/ADSN-1
OrgAbuseHandle: AEA8-ARIN
OrgAbuseName: Amazon EC2 Abuse
OrgAbusePhone: +1-206-555-0000
OrgAbuseEmail: [email protected]
OrgAbuseRef: https://rdap.arin.net/registry/entity/AEA8-ARIN
OrgTechHandle: ANO24-ARIN
OrgTechName: Amazon EC2 Network Operations
OrgTechPhone: +1-206-555-0000
OrgTechEmail: [email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/ANO24-ARIN
OrgNOCHandle: AANO1-ARIN
OrgNOCName: Amazon AWS Network Operations
OrgNOCPhone: +1-206-555-0000
OrgNOCEmail: [email protected]
OrgNOCRef: https://rdap.arin.net/registry/entity/AANO1-ARIN
# end
# start
NetRange: 205.251.196.0 - 205.251.197.255
CIDR: 205.251.196.0/23
NetName: AMAZON-EC2
NetHandle: NET-205-251-196-0-1
Parent: AMAZON-BYOIP (NET-205-251-192-0-2)
NetType: Reallocated
OriginAS:
Organization: Amazon Data Services Northern Virginia (ADSN-1)
RegDate: 2022-12-06
Updated: 2022-12-06
Comment: -----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
Ref: https://rdap.arin.net/registry/ip/205.251.196.0
OrgName: Amazon Data Services Northern Virginia
OrgId: ADSN-1
Address: 13200 Woodland Park Road
City: Herndon
StateProv: VA
PostalCode: 20171
Country: US
RegDate: 2018-04-25
Updated: 2025-08-14
Ref: https://rdap.arin.net/registry/entity/ADSN-1
OrgAbuseHandle: AEA8-ARIN
OrgAbuseName: Amazon EC2 Abuse
OrgAbusePhone: +1-206-555-0000
OrgAbuseEmail: [email protected]
OrgAbuseRef: https://rdap.arin.net/registry/entity/AEA8-ARIN
OrgTechHandle: ANO24-ARIN
OrgTechName: Amazon EC2 Network Operations
OrgTechPhone: +1-206-555-0000
OrgTechEmail: [email protected]
OrgTechRef: https://rdap.arin.net/registry/entity/ANO24-ARIN
OrgNOCHandle: AANO1-ARIN
OrgNOCName: Amazon AWS Network Operations
OrgNOCPhone: +1-206-555-0000
OrgNOCEmail: [email protected]
OrgNOCRef: https://rdap.arin.net/registry/entity/AANO1-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 205.251.197.175.
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 205.251.197.175: 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