CF1760580272523-tsm20251015201252

IPLIST.NET - first.io

Search for IP or hostnames:

first.io checked at 2025-10-16T02:04:32.501Z 738ms 145/145/145 100% R:12

first.io

NSns-249.awsdns-31.com
A2600:9000:5300:f900::1 🇺🇸 Amazon
PTRns-249.awsdns-31.com
A205.251.192.249🇺🇸 Amazon
PTRns-249.awsdns-31.com
MXus-smtp-inbound-1.mimecast.com
A170.10.128.141🇺🇸 Mimecast-NA
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
A170.10.128.221🇺🇸 Mimecast-NA
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
A170.10.128.242🇺🇸 Mimecast-NA
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
A170.10.132.141🇺🇸 Mimecast-NA
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
A170.10.132.221🇺🇸 Mimecast-NA
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
A170.10.132.242🇺🇸 Mimecast-NA
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
MXus-smtp-inbound-2.mimecast.com
A170.10.128.141🇺🇸 Mimecast-NA
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
A170.10.128.221🇺🇸 Mimecast-NA
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
A170.10.128.242🇺🇸 Mimecast-NA
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
A170.10.132.141🇺🇸 Mimecast-NA
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
A170.10.132.221🇺🇸 Mimecast-NA
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
A170.10.132.242🇺🇸 Mimecast-NA
PTRus-smtp-inbound-1.mimecast.com
PTRus-smtp-inbound-2.mimecast.com
NSns-547.awsdns-04.net
A2600:9000:5302:2300::1 🇺🇸 Amazon
PTRns-547.awsdns-04.net
A205.251.194.35🇺🇸 Amazon
PTRns-547.awsdns-04.net
NSns-1435.awsdns-51.org
A2600:9000:5305:9b00::1 🇺🇸 Amazon
PTRns-1435.awsdns-51.org
A205.251.197.155🇺🇸 Amazon
PTRns-1435.awsdns-51.org
NSns-1913.awsdns-47.co.uk
A2600:9000:5307:7900::1 🇺🇸 Amazon
PTRns-1913.awsdns-47.co.uk
A205.251.199.121🇺🇸 Amazon
PTRns-1913.awsdns-47.co.uk
A35.83.2.39🇺🇸 Amazon
PTRec2-35-83-2-39.us-west-2.compute.amazonaws.com
A52.37.114.126🇺🇸 Amazon
PTRec2-52-37-114-126.us-west-2.compute.amazonaws.com

io

NSa0.nic.io
NSa2.nic.io
NSb0.nic.io
NSc0.nic.io

Starts with same word

Starts similarily

AI analysis

first.io points to two IPs: 35.83.2.39 and 52.37.114.126.

Other host names, for example, ec2-52-37-114-126.us-west-2.compute.amazonaws.com share IP numbers with first.io.

first.io is delegated to four name servers: ns-249.awsdns-31.com, ns-547.awsdns-04.net, ns-1435.awsdns-51.org and ns-1913.awsdns-47.co.uk.

first.io at least partially shares name servers with other domains such as lokomix.com, rejoiner.com, wwprojects.com, castlegar.ca and 5gbet3.com.

These name servers are commonly used alongside ns-26.awsdns-03.com, ns-874.awsdns-45.net, ns-1090.awsdns-08.org, ns-328.awsdns-41.com, ns-472.awsdns-59.com, ns-757.awsdns-30.net and ns-1237.awsdns-26.org.

Host names with two IP numbers:

ns-249.awsdns-31.com points to 2600:9000:5300:f900::1 and 205.251.192.249

ns-547.awsdns-04.net points to 2600:9000:5302:2300::1 and 205.251.194.35

ns-1435.awsdns-51.org points to 2600:9000:5305:9b00::1 and 205.251.197.155

ns-1913.awsdns-47.co.uk points to 2600:9000:5307:7900::1 and 205.251.199.121

Two mail servers handle first.io: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

first.io shares the same mail server setup as other domains, including icorps.com, bpsjet.com, crtecchina.com, uniformadvantage.com and kestrafinancialpws.com.

first.io shares some mail servers with other domains, for instance swnow.eu, advantedgehr.com and mail.electromek.com.

Host names with six IP numbers: The host name us-smtp-inbound-1.mimecast.com points to 170.10.128.141, 170.10.128.221, 170.10.128.242, 170.10.132.141, 170.10.132.221 and 170.10.132.242; the host name us-smtp-inbound-2.mimecast.com points to 170.10.128.141, 170.10.128.221, 170.10.128.242, 170.10.132.141, 170.10.132.221 and 170.10.132.242.

Host names that point to 170.10.128.141: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

Host names that point to 170.10.128.221: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

Host names that point to 170.10.128.242: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

Host names that point to 170.10.132.141: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

Host names that point to 170.10.132.221: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

Host names that point to 170.10.132.242: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
dbq

IXyxNNK CF johedugfp 2025-10-16