AS53316 — ASN-CHEETA-MAIL - CHEETAHMAIL

AS53316 announces 31 IPv4 prefixes covering 11,776 addresses and 0 IPv6 prefixes.

About this network

ASN-CHEETA-MAIL is operated by CheetahMail.

What it's used for

• The address space carries email infrastructure, evidenced by reverse DNS entries such as p1-002254.email.americanexpress.com and ny7p01lppmta259.deliverability.chtah.net, alongside netnames like CHEETAH-PUBLIC and LVLT-CHEET-1-8-7-42.
• The AS announces 14,848 IPv4 addresses across 40 prefixes with 5 observed neighbours, a ratio consistent with a dedicated business network rather than a transit provider.
• Traffic from this AS consists of email marketing campaigns and deliverability services, reflecting CheetahMail's role as a B2B email platform.

Notable

• Registrants for the majority of prefixes are listed as CHEETAHMAIL, while two larger blocks (38.64.68.0/22 and 38.107.102.0/23) are registered to Cogent Communications, LLC with the netname COGENT-A.
• CheetahMail, formerly part of Experian's marketing suite and later rebranded under Vector Capital as Cheetah Digital, ceased operations in December 2025 after 27 years.
• The inventory includes legacy blocks with netnames referencing QWEST-EWR and LVLT, indicating historical acquisitions or migrations from Level 3 and Qwest.

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

Announced prefixes

• 8.7.42.0/23
• 8.7.44.0/24
• 8.30.201.0/24
• 8.36.64.0/24
• 8.41.103.0/24
• 38.64.68.0/22
• 38.100.169.0/24
• 38.103.51.0/24
• 38.107.100.0/24
• 38.107.108.0/24
• 38.108.96.0/24
• 38.119.56.0/24
• 63.146.96.0/24
• 63.148.46.0/24
• 63.211.90.0/23
• 63.232.236.0/24
• 63.236.76.0/23
• 63.239.204.0/24
• 65.125.54.0/24
• 66.77.119.0/24
• 67.72.100.0/23
• 72.166.182.0/23
• 173.213.0.0/22
• 173.213.4.0/23
• 173.213.24.0/23
• 173.213.60.0/23
• 206.132.204.0/24
• 207.251.96.0/23
• 208.45.133.0/24
• 208.49.63.0/24
• 208.50.56.0/24

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS3257 GTT Communications Inc.
• AS8002 Stealth Communications Services, LLC

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS3257 GTT Communications Inc.
• AS8002 Stealth Communications Services, LLC

Routing security

• RPKI: 2 valid, 0 invalid and 39 not-found announcements; 3 ROAs.
• ASPA: none published.
• IRR: 10% of announcements registered; 8 route objects.
• Listed in as-sets: AS-GTTCUST, AS-JARMTELCO, AS-STEALTH.