AS15433 — TISM Telecom Italia San Marino.

AS15433 announces 9 IPv4 prefixes covering 20,224 addresses and 0 IPv6 prefixes.

About this network

The microstate's carrier, with four different company names across its records.

What it's used for

• The incumbent carrier of a microstate. Nine IPv4 prefixes announced from San Marino, no IPv6, twenty thousand addresses, across thirty-nine observed BGP neighbours.

Notable

• Every netname begins with the country code and a fourth company name that appears nowhere else: not the handle, not the holder, not the reverse domain.
• The oldest of those netnames carries a six digit date while the rest use eight, so the convention changed between the first allocation and the others.
• Two blocks are dated one day apart, which is what a single request split into two allocations looks like.
• The answering addresses use the word host, the full address in dashes, and usually a word for dynamic, under two domains: one under the country's own top level domain and one under a commercial suffix.
• Eighteen addresses were queried for reverse DNS and six returned a name.

Interesting

• Thirty-nine neighbours for a state of this size is the striking figure. A country's only carrier has to reach everywhere, and the population it serves does not reduce that requirement.
• Sovereign top level domains are a small country's most visible asset online, and using it for subscriber reverse names is a quiet assertion of that.
• One block's netname marks it for a specific access technology while the rest are generic, so that space is set aside for a product rather than a customer.

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

Announced prefixes

• 31.193.32.0/21
• 77.242.208.0/20
• 85.155.144.0/22
• 109.235.104.0/21
• 185.45.40.0/22
• 185.45.68.0/22
• 185.86.61.0/24
• 185.86.62.0/23
• 194.183.64.0/19

Upstream networks

• AS174 Cogent Communications, LLC
• AS6762 TELECOM ITALIA SPARKLE S.p.A.
• AS6939 Hurricane Electric LLC
• AS3303 Swisscom (Schweiz) AG
• AS57463 NetIX Communications JSC
• AS31543 myNet GmbH
• AS59919 Brainbox S.r.l.
• AS24482 SG.GS

Downstream networks

• AS201852 Bluindaco S.R.L.
• AS212841 A.A.S.S. Azienda Autonoma di Stato per i Servizi Pubblici

Adjacent networks

• AS174 Cogent Communications, LLC
• AS6762 TELECOM ITALIA SPARKLE S.p.A.
• AS6939 Hurricane Electric LLC
• AS3303 Swisscom (Schweiz) AG
• AS201852 Bluindaco S.R.L.
• AS31543 myNet GmbH
• AS59919 Brainbox S.r.l.
• AS57463 NetIX Communications JSC
• AS24482 SG.GS
• AS212841 A.A.S.S. Azienda Autonoma di Stato per i Servizi Pubblici

Internet exchanges

• Milan Internet Exchange — Milan, Italy