SURBL Application

The following page provides details on domains, networks, IPs, hosting services, and content delivery networks used by SURBL.

Description

SURBLs are lists of web sites that have appeared in spam messages. Unlike most lists, SURBLs are not lists of message senders.

Category	Cybersecurity
Web Link	SURBL - Home Page

Application Domains

The application domains data shown here is available in our Netify Data Feeds solution. The data is accessible via our IP API as well as downloadable datasets.

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SURBL - Domains

surbl.org is the primary domain associated with SURBL.

Core Networks

Applications are sometimes deployed on partner networks, parent company networks, or regional hosting providers. The following is a sample of SURBL IP addresses deployed on this type of network.

Network	PoP	Category	Location	IP	Shared
Cisco Secure Email	Core Network	Mail	United States	184.94.240.109

Other Networks

There are tens of thousands of Internet network providers and we make an effort to track as many as we can, but we have less coverage for niche and local providers. The following is a sample of SURBL IP addresses on this type of network.

ASN Description	ASN	Route	Location	IP
Strato	AS6724	81.169.144.0/22	Germany	81.169.144.140
SURF	AS1103	145.100.128.0/17	Netherlands	145.100.188.22
National Technical Universi...	AS3323	147.102.0.0/16	Greece	147.102.222.241
SURF (Thunderlab)	AS1101	192.42.116.0/22	Netherlands	192.42.119.11
SURF (Thunderlab)	AS1101	192.42.116.0/22	Netherlands	192.42.119.21

Hosting

Cloud hosting vendors like AWS and Microsoft Azure provide cloud-based computing and network resources to deliver applications. The hosting platforms used by SURBL are summarized below by geographical points-of-presence (PoP). Each PoP can host many IPs to deliver an application.