AS12445 — SPIDERNET-AS

AS12445 announces 9 IPv4 prefixes covering 50,176 addresses and 0 IPv6 prefixes.

About this network

A municipal utility's network arm, holding address space allocated every few years since 1996.

What it's used for

• Business and municipal connectivity. 50,176 addresses in seventeen IPv4 prefixes with thirty-eight observed BGP neighbours and no IPv6 announced.

Notable

• Every block carries the same netname stem, IT-A2ASMARTCITY, with its allocation date appended. The oldest reads 960912, the newest 20131107.
• The date format changes partway through the sequence: 960912 and 990301 use two digits for the year, everything from 2002 onward uses four.
• The AS handle is SPIDERNET-AS, a name that survives nowhere else in the record.

Interesting

• Seventeen allocations spread across seventeen years is a network that grew by asking again each time it filled up, which is how address space worked before the free pool ran out. Read in order, those netnames are a growth chart with dates on it.
• Italian multi-utilities built fibre because they already had the ducts. A company that runs electricity, gas and district heating under a city has a right of way under every street in it, and pulling a cable through an existing conduit is the cheapest network construction there is. The utility becomes the telecoms operator almost by accident of what it already owns.

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

Announced prefixes

• 79.98.0.0/21
• 81.88.224.0/19
• 82.115.160.0/19
• 83.137.160.0/21
• 85.88.192.0/19
• 185.39.240.0/22
• 195.206.0.0/19
• 212.38.32.0/19
• 217.146.192.0/20

Upstream networks

• AS1299 Arelion Sweden AB
• AS6939 Hurricane Electric LLC
• AS24482 SG.GS
• AS59919 Brainbox S.r.l.
• AS31543 myNet GmbH
• AS8218 Zayo Infrastructure France SA
• AS15830 Equinix (EMEA) Acquisition Enterprises B.V.
• AS57463 NetIX Communications JSC

Downstream networks

• AS42538 COMUNE DI BRESCIA
• AS28831 Phoenix Informatica SRL
• AS5382 PLANET SERVICE SRL

Adjacent networks

• AS1299 Arelion Sweden AB
• AS25002 A2A Smart City S.P.A
• AS42538 COMUNE DI BRESCIA
• AS6939 Hurricane Electric LLC
• AS28831 Phoenix Informatica SRL
• AS5382 PLANET SERVICE SRL
• AS24482 SG.GS
• AS59919 Brainbox S.r.l.
• AS8218 Zayo Infrastructure France SA
• AS15830 Equinix (EMEA) Acquisition Enterprises B.V.
• AS31543 myNet GmbH
• AS57463 NetIX Communications JSC

Internet exchanges

• Milan Internet Exchange — Milan, Italy