Autonomous system
AS15711 IBERDROLA Bilbao
Unclassified RIPE
Summary
Iberdrola
enterprise infrastructure business
The AS handle is the company name and a city, and the city is the only extra information in it.
What it's used for
- An energy utility's corporate network. One IPv4
/20announced from Spain, no IPv6, four thousand and ninety-six addresses, across two observed BGP neighbours.
Notable
- The handle appends a city to the brand, so the routing identifier records where the company is based rather than anything about the network.
- The single block's netname is a country code, the brand and an allocation date from the same period the number was first seen.
- The second registrant is the company's initials followed by the registry's name, a contact object named after the system it lives in.
- Four thousand addresses are announced as one route with no smaller pieces.
- Three addresses were queried for reverse DNS and none returned a name.
- There is no IPv6 announcement at all.
Interesting
- A city in a handle is the same instinct as a street address in one, which turns up repeatedly in this stretch of numbers. The field was treated as a place to describe the organisation rather than to name the network.
- A utility with one block, one route and no reverse names has a network that exists to connect offices, not to serve anyone from outside. The public surface is as small as a company this size can make it.
- Two upstreams and no IPv6 is a corporate network that has been stable long enough that nothing has forced it to change.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 4.10K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| ES | Spain | 1 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS15711- Registry name
- IBERDROLA
- Registrant
- IBSIS-MNT
- Abuse contact
- agonzalezz@iberdrola.es
- Registered
- 1970-01-01
- Last changed
- 2020-03-10
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 3 with no ROA
- ROAs
- 0 authorising AS15711
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 3 naming AS15711
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: 442 networks and 1,781 prefixes, as published 2026-10-16. 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