AS16438 SATLCMINT01 - Satelcom Internet Inc.

Six addresses answered the reverse lookup, and between them they used five different domains.

What it's used for

• A regional provider's network. Five IPv4 prefixes announced from Canada, no IPv6, seven thousand four hundred and twenty-four addresses, through one observed BGP neighbour.

Notable

• Three blocks share a netname built in four parts: the brand shortened, three letters for a city, four characters that match nothing else in the record, and a counter that runs from zero rather than one.
• The other two blocks are registered to different companies, each named after itself, so the network announces two other businesses' address space alongside its own.
• All three of the provider's blocks list the same extra contact: a job title, not a person or a team.
• Six of fifteen queried addresses answered, spread across five domains. Two are the provider's own under different endings, one adds a regional label, and two belong to unrelated organisations.
• Five of the six answers begin with three letters for a network and then the address hyphenated. The sixth begins with a wireless marker, a place name, and a word for a changing assignment instead.

Interesting

• A provider whose subscribers answer on their own domains is doing the reverse zone by hand, one customer at a time. Most networks stopped doing that when they got large enough for it to hurt.
• The one address that names its own site and calls itself changeable is the exception that shows the system underneath: somewhere there is a template, and it is used only when nobody asked for better.