AS12540 — IDECNET-AS

AS12540 announces 1 IPv4 prefixes covering 8,192 addresses and 1 IPv6 prefixes.

About this network

A Spanish ISP with 22 neighbours behind one /19, and a reverse name that gives away its internal subnetting.

What it's used for

• Internet access and hosting. 8,192 addresses in a single /19, one IPv6 /29, and 22 observed BGP neighbours.

Notable

• The whole IPv4 inventory is 212.64.160.0/19, netname ES-IDECNET-990707.
• The IPv6 allocation is a /29, several thousand times more space than the IPv4 block it sits beside.
• One sampled address answers conelpa-broad255.idecnet.com.

Interesting

• broad255 is the interesting half of that name. The block announced to the world is a /19, and inside a /19 an address ending .255 is an unremarkable host — it is only a broadcast address if the network is internally cut into /24s. The reverse zone is describing structure that BGP never shows, which is often the only place that structure is written down at all.
• Twenty-two neighbours against 8,192 addresses is a lot of adjacency for a small inventory. That ratio belongs to a provider that peers rather than one that resells transit, which is the economical shape when your customers are far from the mainland exchanges.
• The /29 of IPv6 beside a single /19 of IPv4 is the whole address-exhaustion story in one inventory. The scarce resource was rationed to eight thousand addresses; the abundant one was handed over in a size that will never be filled.

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

Announced prefixes

• 212.64.160.0/19
• 2a0d:fc0::/29

Upstream networks

• AS29119 AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL
• AS3356 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS3303 Swisscom (Schweiz) AG
• AS57463 NetIX Communications JSC
• AS37721 Virtual Technologies & Solutions

Downstream networks

• AS200555 WiFi Canarias de Telecomunicaciones y Fibra SL
• AS44998 GOBIERNO DE CANARIAS
• AS202211 Manuel Mariposa Consulting SL
• AS62104 Computer Service Internet Service Provider S.L.

Adjacent networks

• AS29119 AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL
• AS200555 WiFi Canarias de Telecomunicaciones y Fibra SL
• AS202211 Manuel Mariposa Consulting SL
• AS44998 GOBIERNO DE CANARIAS
• AS3356 Level 3 Parent, LLC
• AS174 Cogent Communications, LLC
• AS6939 Hurricane Electric LLC
• AS62104 Computer Service Internet Service Provider S.L.
• AS3303 Swisscom (Schweiz) AG
• AS37721 Virtual Technologies & Solutions
• AS57463 NetIX Communications JSC

Internet exchanges

• DE-CIX Madrid — Madrid, Spain
• ESpanix Madrid Lower LAN — Madrid, Spain
• IXPlay Global Peers — Madrid, Spain