AS13243 — NO-TTSN-ASN2 Tietoevry Norway - Regions

Network type: hosting

AS13243 announces 7 IPv4 prefixes covering 55,808 addresses and 2 IPv6 prefixes.

About this network

The reverse names replace the last octet with a literal x and put it all under hidden-host.

What it's used for

• The network of a Nordic technology services company in Norway. 56,832 addresses across eight IPv4 prefixes, two IPv6 prefixes, and two observed BGP neighbours.

Notable

• Three addresses in one /24 all returned tietoevry-owned-address-146-192-160-x.hidden-host.tietoevry.com.
• An older brand's version uses underscores: evry-owned-address-185226101x.hidden-host.evry.com.
• Netnames run NO-EGROUP-970514, NO-EGROUP-20000515, NO-EGROUP-20171018, plus EVRY-NO and EVRY-REGIONS-W.
• Some blocks list four contacts, including two role objects and an external hostmaster.

Interesting

• This is reverse DNS used to say nothing on purpose. The name confirms the block is the company's, refuses the host identity with a placeholder, and labels the whole zone hidden-host so the intent is unmistakable. Networks elsewhere in this range publish interface names and gateway numbers; this one publishes a decision not to.
• The underscore version is invalid in a hostname and works anyway, because resolvers do not enforce the rule. Two generations of the same scheme, one of them out of spec.
• Six-digit and eight-digit dates from the same holder, again, with the brand changing across them.

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

Announced prefixes

• 62.148.32.0/19
• 77.94.232.0/21
• 146.192.128.0/17
• 193.36.191.0/24
• 195.245.202.0/24
• 195.254.192.0/19
• 217.18.192.0/20
• 2a00:ef8::/32
• 2a00:97c0::/32

Upstream networks

• AS5619 Tieto Norway AS

Adjacent networks

• AS5619 Tieto Norway AS