AS15520 — ASN-TELEEST

AS15520 announces 2 IPv4 prefixes covering 1,280 addresses and 0 IPv6 prefixes.

About this network

Two adjacent blocks that still cannot be announced as one.

What it's used for

• A regional internet provider. Two IPv4 prefixes announced from Romania, no IPv6, a thousand two hundred addresses, through one observed BGP neighbour.

Notable

• The two blocks sit next to each other in the address space, a /22 followed immediately by a /24, yet they still need two routes.
• Both carry the same netname, the company name and nothing else, and the same two registrants.
• Every answering address uses one form: a word for static, the address in dashes, then the company domain.
• Five of six sampled addresses answered, with no variation in the scheme.
• Six addresses were queried for reverse DNS and five returned a name.

Interesting

• Adjacency is not enough to merge two routes. A single announcement has to start on a boundary that matches its own size, and a /22 followed by a /24 does not line up, so the extra routing entry is unavoidable rather than careless.
• Labelling every address as static tells anyone looking that these are assigned rather than handed out on demand, which changes how mail from them is treated.
• One naming scheme, one netname, two registrants, no exceptions anywhere: a small provider whose records were set up once and left correct.

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

Announced prefixes

• 194.176.168.0/22
• 194.176.172.0/24

Upstream networks

• AS8708 DIGI ROMANIA S.A.

Adjacent networks

• AS8708 DIGI ROMANIA S.A.

Routing security

• RPKI: 2 valid, 0 invalid and 0 not-found announcements; 2 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 2 route objects.
• Listed in as-sets: AS-AIG, AS-AIGNET, AS-DATANET, AS-GLOBTEL, AS-GTSRO, AS-RDSNET, AS-TELEEST, AS15520:AS-TMTA.