Autonomous system
AS12445 SPIDERNET-AS
Unclassified RIPE
Summary
A2A Smart City
isp legacy
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 reads960912, the newest20131107. - The date format changes partway through the sequence:
960912and990301use 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. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Milan Internet Exchange | Milan, Italy | 217.29.66.198 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 17 prefixes · 50.18K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| IT | Italy | 17 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS12445- Registry name
- SPIDERNET-AS
- Registrant
- A2A Smart City S.P.A
- Abuse contact
- abuse@a2asmartcity.net
- Registered
- 2001-12-19
- Last changed
- 2024-03-04
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 14% valid · 2 valid, 12 with no ROA
- ROAs
- 5 authorising AS12445
- ASPA
- no ASPA record
- IRR
- 100% registered · 14 of 14 announcements
- Route objects
- 34 naming AS12445
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 431 networks and 1,768 prefixes, as published 2026-10-12. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere