AS16290 — TARMAN Tarnow
AS16290 announces 3 IPv4 prefixes covering 11,264 addresses and 0 IPv6 prefixes.
About this network
Three answered addresses, three different reverse-name schemes, two different domains.
What it's used for
- A city information centre's network. Three IPv4 prefixes announced from Poland, no IPv6, eleven thousand two hundred and sixty-four addresses, through six observed BGP neighbours.
Notable
- Three of nine queried addresses answered, and no two follow quite the same rule. One is two letters for an address, then the third and fourth octets joined by a hyphen, on the network's own domain.
- The second replaces those two letters with a single letter for a host, keeping everything else identical, so one scheme has two prefixes depending on which range you land in.
- The third uses the first form but sits on the city government's domain, under a three-letter label for the municipal office.
- All three blocks share one netname scheme: a country code, the network's brand, and a full date. Two blocks share one date and the third is three years later.
- The holder field is an institution's name followed by a private individual's name, so the registry records a person alongside the organisation.
- The AS handle is the brand and the city, which is the only place the city is named outright.
Interesting
- A city network that serves the municipality from its own address space blurs a line most operators keep sharp. The council's hosts answer under the council's domain on the provider's addresses.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 84.23.160.0/19
- 217.117.128.0/22
- 217.117.136.0/21
Upstream networks
Adjacent networks
BGP / ASN / CIDR
awaiting query
enter an AS number, IP address, or organisation name above
IPv4
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IPv6
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Search Results
IPv4 Prefixes
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IPv6 Prefixes
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Total Prefixes
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Unique /24s
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⚠ SUSPICIOUS PREFIX ANNOUNCEMENTS DETECTED