AS15753 — BP-US-2

AS15753 announces 7 IPv4 prefixes covering 4,608 addresses and 0 IPv6 prefixes.

About this network

The second of a numbered pair. The handle before this one ends in one; this one ends in two.

What it's used for

• An energy group's corporate network. Six IPv4 prefixes announced from the United Kingdom, no IPv6, four thousand six hundred and eight addresses, across two observed BGP neighbours.

Notable

• The AS handle is the brand, a two-letter country code and the digit two, and the number immediately before this one carries the same string ending in one.
• That country is not the one either set of blocks is announced from.
• Three blocks share a netname built from the brand, the word for a network and four octets. None of the three sits in the block those octets name.
• The same netname appears on a block belonging to the number before this one, so one name now covers four blocks across two autonomous systems, and matches none of them.
• Two further blocks use a four-character netname with a digit, listing a global network services contact.
• One block's registry lookup failed, so its details are unknown rather than absent.
• Eighteen addresses were queried for reverse DNS and none returned a name.

Interesting

• A serial number in a handle usually leaves the reader guessing where the rest of the set is. Here the answer is the next number in the sequence, which is as tidy as this ever gets.
• One netname across four blocks, correct for none of them, is what copying a template does. The name was right once and has been inherited ever since.

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

Announced prefixes

• 129.230.184.0/21
• 129.230.229.0/24
• 129.230.252.0/22
• 164.63.235.0/24
• 164.63.236.0/23
• 164.63.238.0/24
• 164.63.253.0/24

Upstream networks

• AS13335 Cloudflare, Inc.
• AS701 Verizon Business
• AS394437 PS Lightwave

Adjacent networks

• AS13335 Cloudflare, Inc.
• AS701 Verizon Business
• AS394437 PS Lightwave