AS16283 — LODMAN-AS2 Metropolitan Area Network LODMAN

AS16283 announces 6 IPv4 prefixes covering 26,624 addresses and 1 IPv6 prefixes.

About this network

The handle spells out what the acronym means and then repeats the acronym anyway.

What it's used for

• A metropolitan academic network. Seven prefixes announced from Poland, one of them IPv6, twenty-six thousand six hundred and twenty-four addresses, through four observed BGP neighbours.

Notable

• The AS handle is the network's name, a numeral, then the three words the name abbreviates, then the name again. One field states the same thing three ways.
• All six IPv4 blocks share two netnames, each a country code, the network's name, and a six-digit date with the century dropped. The two dates are six weeks apart.
• Every block is registered to the university and to an abuse role named after the network rather than the institution, so the operator and the owner are recorded separately.
• Two of eighteen queried addresses answered, both on a departmental subdomain under the city's name. One is a three-letter label with a numeral, the other a three-letter label with a two-digit number.
• Twenty-six thousand addresses behind four upstreams, with almost nothing published in reverse DNS.

Interesting

• Academic metropolitan networks were built to connect a city's universities to each other, then became the uplink for all of them. The abbreviation names the city network; the registrant names whichever institution agreed to hold the paperwork.
• Two dates six weeks apart, both from the same era, are the trace of an allocation that arrived in two pieces because the first request was granted smaller than asked.

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

Announced prefixes

• 212.51.200.0/22
• 212.51.205.0/24
• 212.51.206.0/24
• 212.191.128.0/18
• 212.191.192.0/19
• 212.191.254.0/23
• 2001:b10:6000::/35

Upstream networks

• AS196844 Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center
• AS13293 Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center
• AS35628 Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center

Downstream networks

• AS56819 Urzad Marszalkowski w Lodzi

Adjacent networks

• AS196844 Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center
• AS13293 Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center
• AS56819 Urzad Marszalkowski w Lodzi
• AS35628 Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center