AS14782 — THEROCKETSCIENCEGROUP

AS14782 announces 26 IPv4 prefixes covering 14,592 addresses and 0 IPv6 prefixes.

About this network

Every block carries one netname that names the job: delivery. The reverse names spread the same machines across four different domains.

What it's used for

• An email marketing platform's sending network. 14,592 addresses across 26 IPv4 prefixes, with a single observed BGP neighbour and no IPv6 announced.

Notable

• Every block that resolved carries the netname RSG-DELIVERY, registered to MailChimp.
• Seven of eighteen sampled addresses returned a name, across four domains: mail0.atl91.mcsv.net, mail254.atl171.mcdlv.net, mail254.suw16.rsgsv.net and mail133-254.atl131.mandrillapp.com.
• The middle label is a site code with a number: atl91, atl131, atl171, sea81, suw16, suw21, wdc02.
• The AS handle is THEROCKETSCIENCEGROUP, the parent company, which appears nowhere in the registrations.

Interesting

• Bulk email lives or dies on reputation, and reputation attaches to addresses. Spreading identical machines across four domains lets the operator separate its products in the eyes of every spam filter on the internet, so one customer's bad campaign does not poison the rest.
• The site codes name a city and then a number, which means several sending clusters per location. Segmenting by cluster as well as by domain gives even finer control over which addresses carry which traffic.
• One netname across 26 prefixes says the whole estate has one purpose. Most networks this size hold a mixture; this one holds outbound mail and nothing else.
• One neighbour is all a sender needs. Nobody has to reach these machines; they only have to reach everybody else.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 148.105.0.0/23
• 148.105.4.0/24
• 148.105.8.0/24
• 148.105.10.0/23
• 148.105.12.0/22
• 148.105.16.0/24
• 148.105.128.0/23
• 148.105.251.0/24
• 148.105.255.0/24
• 198.2.128.0/21
• 198.2.136.0/22
• 198.2.141.0/24
• 198.2.142.0/23
• 198.2.144.0/23
• 198.2.174.0/23
• 198.2.177.0/24
• 198.2.178.0/23
• 198.2.180.0/22
• 198.2.184.0/22
• 198.2.188.0/24
• 198.2.190.0/24
• 205.201.128.0/22
• 205.201.133.0/24
• 205.201.134.0/23
• 205.201.136.0/23
• 205.201.139.0/24

Upstream networks

• AS16509 Amazon.com, Inc.

Adjacent networks

• AS16509 Amazon.com, Inc.