AS16376 — SYSGROUP-PLC SysGroup Plc

Network type: hosting

AS16376 announces 2 IPv4 prefixes covering 4,096 addresses and 0 IPv6 prefixes.

About this network

The holder and the handle differ by exactly one capital letter, and the record keeps both.

What it's used for

• A managed services company's network. Two IPv4 prefixes announced from the United Kingdom, no IPv6, four thousand and ninety-six addresses, through one observed BGP neighbour.

Notable

• The holder writes the company's legal form in lower case. The AS handle writes the same name twice, once in capitals with a hyphen and once with the legal form capitalised. The two spellings sit in one field.
• Both blocks use one scheme: a country code, the brand, and a full date. The dates are four years apart and the format is identical.
• Both blocks are the same size and come from unrelated parent ranges.
• Each lists three contacts: the company, an abuse role, and a maintainer object whose label names the registry database it belongs to.
• One observed upstream carries both blocks.
• Six addresses were queried for reverse DNS and none returned a name.

Interesting

• A contact named after the database it lives in is the registry describing itself. The maintainer object controls who may edit these entries, and somebody named it after that function rather than after a team.
• Two equal blocks, one upstream and no reverse names is a hosting business that runs machines for other people and puts none of its own names in public. The customers' names would be on their own domains.
• The capitalisation mismatch costs nothing and will outlive everyone who could explain it.

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

Announced prefixes

• 37.35.88.0/21
• 94.199.184.0/21

Upstream networks

• AS174 Cogent Communications, LLC

Adjacent networks

• AS174 Cogent Communications, LLC

Internet exchanges

• LINX LON1 — London, United Kingdom