Autonomous system
AS206404 ALTERCOM21
Unclassified RIPE
Summary
Altercom-21
business spain small
The AS handle ALTERCOM21 is held by Altercom-21 SL.
What it's used for
- The address space is registered under the netname
ES-ALTERCOM-21-20170125for both announced prefixes. - The network announces 512 IPv4 addresses across 2 prefixes and maintains 1 observed neighbour, indicating a small, self-contained business network rather than a transit or large access provider.
- Traffic from this AS consists of corporate endpoints and services operated by Altercom-21 SL, a Spanish telecommunications company.
Notable
- Registrant data for both prefixes lists
ALTERCOM-21 SL, which aligns with the AS holder. - The inventory consists of two /24 blocks (185.187.68.0/24 and 185.187.71.0/24) with no IPv6 prefixes announced.
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 |
|---|---|---|
| DE-CIX Barcelona | Barcelona, Spain | 185.1.119.30 |
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS29119 | AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL | 122 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-28, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 512 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| ES | Spain | 2 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS206404- Registry name
- Altercom21
- Registrant
- es-altercom-21-1-mnt
- Abuse contact
- david@altercom21.com
- Registered
- 2017-01-25
- Last changed
- 2018-09-04
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Altercom-21
- Scope
- Not Disclosed
- Traffic ratio
- Not Disclosed
- Peering policy
- Open
- Present at
- 1 exchanges
- Facilities
- 1 facilities
- Website
- https://www.altercom21.com
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 2 with no ROA
- ROAs
- 0 authorising AS206404
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 3 naming AS206404
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: 448 networks and 1,851 prefixes, as published 2026-10-29. 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