AS30639 — CMCFLEX - Computer Marketing Corporation

AS30639 announces 2 IPv4 prefixes covering 512 addresses and 0 IPv6 prefixes.

About this network

The AS handle CMCFLEX is held by Computer Marketing Corporation.

What it's used for

• The address space carries corporate infrastructure, evidenced by netnames CMCFLEX-1 and XOXO-216-112-117-0 and reverse DNS entries pointing to ptr.us.xo.net.
• The AS announces 512 IPv4 addresses across 2 prefixes with 3 observed neighbours, indicating a small-scale business network rather than a transit provider.

Notable

• Registrants for both announced prefixes are listed as Computer Marketing Corporation, matching the AS holder.
• The address inventory consists of two /24 blocks, one of which uses a netname referencing XO Communications, suggesting a relationship with or migration from that provider.

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

Announced prefixes

• 23.247.252.0/24
• 216.112.117.0/24

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS701 Verizon Business
• AS33660 Comcast Cable Communications, LLC

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS701 Verizon Business
• AS33660 Comcast Cable Communications, LLC

Routing security

• RPKI: 0 valid, 0 invalid and 2 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 3 route objects.
• Listed in as-sets: AS-COMCAST-EDIA, AS-XO, AS-XO-B.