AS16154 — TELECOMS-AS ISP

AS16154 announces 14 IPv4 prefixes covering 5,632 addresses and 1 IPv6 prefixes.

About this network

The IPv6 announcements are one aggregate plus a ladder of nine more-specific blocks, each twice the size of the last.

What it's used for

• A provider. Fifteen IPv4 prefixes and seventeen IPv6 prefixes announced from Bulgaria, five thousand six hundred and thirty-two addresses, across seven observed BGP neighbours.

Notable

• The IPv6 side announces one large aggregate and then a series of blocks carved from inside it, each step doubling in size, so the same space is covered several times over at different granularities.
• The IPv4 side is the opposite shape: fifteen small blocks scattered through one range, most of them the smallest routable size, with more prefixes than the address count really needs.
• Most netnames use a country code, brand and date, with dates clustered in the last days of the year two thousand and a few later additions. One block drops the template and lists only the abuse department.
• That abuse contact is named with the company's website address including the national suffix.
• Four of eighteen queried addresses answered. One is a mail exchanger on the company domain; three give the word for unknown on a domain belonging to a dedicated server brand.

Interesting

• Announcing an aggregate and its pieces at once is usually about traffic engineering: the small blocks steer particular customers down particular paths while the big one keeps everything reachable if the rest are filtered.

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

Announced prefixes

• 80.95.29.0/24
• 80.95.30.0/24
• 88.213.195.0/24
• 88.213.204.0/22
• 217.79.64.0/22
• 217.79.72.0/24
• 217.79.77.0/24
• 217.79.78.0/23
• 217.79.83.0/24
• 217.79.86.0/23
• 217.79.88.0/24
• 217.79.90.0/24
• 217.79.92.0/24
• 217.79.95.0/24
• 2a02:7900::/32

Upstream networks

• AS60349 Varteh LTD
• AS6939 Hurricane Electric LLC
• AS59900 Balkan Internet Exchange Ltd
• AS29632 Netassist International EOOD

Downstream networks

• AS57237 Heros Communication Holding Ltd.

Adjacent networks

• AS60349 Varteh LTD
• AS6939 Hurricane Electric LLC
• AS59900 Balkan Internet Exchange Ltd
• AS29632 Netassist International EOOD
• AS57237 Heros Communication Holding Ltd.

Internet exchanges

• Balkan Internet Exchange — Sofia, Bulgaria