AS13357 — Ampernet Telecomunicacoes Ltda

Network type: hosting

AS13357 announces 1 IPv4 prefixes covering 2,048 addresses and 1 IPv6 prefixes.

About this network

The netname is the bare number 768, and every reverse name is the address written backwards.

What it's used for

• A Brazilian internet provider. 2,048 addresses across four IPv4 prefixes, twenty-seven observed BGP neighbours, and the IPv6 block 2804:7acc::/32.

Notable

• All four blocks carry the netname 768, with no letters in it at all.
• Every sampled address resolved, twelve out of twelve, to names like 0.101.192.200.dynamic.ampernet.com.br.
• The addresses ending in 0 and in 255 both answer, and both are labelled dynamic.
• The registrant is written with an accent that the autonomous system's own holder record drops.

Interesting

• A netname made only of digits is what a registry produces when the field is filled from an internal record number rather than a name. It identifies the block to the people who allocated it and to nobody else.
• The reverse names are the address in the order used by the lookup itself, with a domain appended. Whoever generated the zone worked from the query string rather than the address, which is less work and produces names that read backwards to anyone else.
• Twelve of twelve answering, including network and broadcast addresses, is a zone filled in completely by machine. Nothing was carved out for a router or a server.
• Twenty-seven neighbours against two thousand addresses is a provider that peers far more widely than its own footprint would suggest.

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

Announced prefixes

• 200.192.96.0/21
• 2804:7acc::/32

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS37721 Virtual Technologies & Solutions
• AS24482 SG.GS
• AS57463 NetIX Communications JSC
• AS35280 F5 Networks SARL

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS37721 Virtual Technologies & Solutions
• AS24482 SG.GS
• AS57463 NetIX Communications JSC
• AS35280 F5 Networks SARL

Internet exchanges

• IX.br (PTT.br) São Paulo — São Paulo, Brazil
• IX.br (PTT.br) Curitiba — Curitiba, Brazil