AS14443 — BFS-49-14443

AS14443 announces 1 IPv4 prefixes covering 65,536 addresses and 0 IPv6 prefixes.

About this network

Seven prefixes that halve the range at every step, and an AS handle containing its own AS number.

What it's used for

• A financial services processor's network. 65,536 addresses across seven IPv4 prefixes, with two observed BGP neighbours and no IPv6 announced.

Notable

• The seven are 165.79.0.0/17, 165.79.128.0/18, 165.79.192.0/19, 165.79.224.0/20, 165.79.240.0/21, 165.79.248.0/22 and 165.79.252.0/22.
• Each takes half of what the previous one left, until the last two split the remainder evenly.
• All seven carry the netname BROADRIDGE-C, registered to Broadridge Financial Solutions, Inc.
• The AS handle is BFS-49-14443.
• Eighteen addresses were queried for reverse DNS and none returned a name.

Interesting

• This is the textbook halving chain, and almost nothing in the corpus announces it so exactly. Real networks split where a department or a site needed its own routing, which produces a ragged set of pieces. A chain this regular is a range subdivided on paper before anything was plugged in.
• The handle ends in the AS number itself. Handles are chosen by the applicant, and whoever filed this one wanted the record to be self-describing rather than memorable.
• Two neighbours for a firm that processes trades and shareholder records. The volume of the business has almost no relationship to the size of its public routing footprint.
• Nothing answers a reverse lookup on any of the seven blocks.

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

Announced prefixes

• 165.79.0.0/16

Upstream networks

• AS33667 Comcast Cable Communications, LLC
• AS174 Cogent Communications, LLC

Adjacent networks

• AS33667 Comcast Cable Communications, LLC
• AS174 Cogent Communications, LLC