AS14388 — BRONCO-WINE

AS14388 announces 7 IPv4 prefixes covering 1,792 addresses and 0 IPv6 prefixes.

About this network

Seven separate blocks from four providers, for one winery.

What it's used for

• A winery's network. 1,792 addresses across seven IPv4 prefixes, all of them small, with three observed BGP neighbours and no IPv6 announced.

Notable

• Three blocks are registered to the company under BRONCO-W816-7, BRONCO-W21-12 and BRNC-75-141-1-0; another under the full company name.
• One is registered to AT&T Services, Inc. as ATTWORLD30 and two to Comcast Cable Communications, LLC, both as CCCH3-4.
• Nine of eighteen sampled addresses answered. Some are the full address written with dots in front of the company domain, one is sso.broncowine.com, and three carry a carrier's own template.

Interesting

• Seven blocks from four providers, none adjacent, is what a business network looks like when it grows site by site. Each facility bought whatever connection was available locally, kept the addresses that came with it, and the AS ties them together afterwards.
• The reverse names put the whole address in front of the domain rather than replacing the dots with dashes, which is unusual and means somebody wrote the zone by hand rather than generating it.
• Naming a single sign-on endpoint in public DNS points an outsider straight at the login page for the company's internal systems. It is a small piece of free reconnaissance and worth avoiding.
• Two of the seven records carry an identical netname under one cable provider, so those blocks cannot be told apart from the registry alone.

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

Announced prefixes

• 12.5.7.0/24
• 12.156.12.0/24
• 12.208.142.0/24
• 35.131.81.0/24
• 50.236.147.0/24
• 50.237.195.0/24
• 75.141.1.0/24

Upstream networks

• AS22516 Charter Communications LLC
• AS7018 AT&T Enterprises, LLC
• AS33651 Comcast Cable Communications, LLC

Adjacent networks

• AS22516 Charter Communications LLC
• AS7018 AT&T Enterprises, LLC
• AS33651 Comcast Cable Communications, LLC