asn.dev

Autonomous system

AS15919 INTERHOST

Hosting RIPE

IPv4 addresses 18.43K 3 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly ES
Exchanges 0 recorded by PCH
Upstreams 3 1 downstream
Flagged prefixes 0 none

Summary

Interhost

Spain · AI-generated

hosting isp business

The one answering address names a node, a network and a city in a single label.

What it's used for

  • A hosting provider's network. Three IPv4 prefixes and one IPv6 /32 announced from Spain, eighteen thousand four hundred and thirty-two addresses, across four observed BGP neighbours.

Notable

  • The company's registered name describes the trade rather than naming a brand: hosting services on the internet, with a legal form after it. The brand appears only in the handle and the netnames.
  • One of the three blocks failed its registry lookup, so its details are unknown rather than absent.
  • The two readable netnames are a country code, the brand, and dates seven years apart, the earlier falling at the very end of a year.
  • Nine addresses were queried and one answered, with a name joining a word for a node, a number, and the word for a network into one label, then a three-letter city code, then the brand's domain.
  • Four upstreams for eighteen thousand addresses, which is generous for the size.

Interesting

  • Putting a city code between the host label and the domain gives a hosting provider a per-site zone it can delegate to whoever runs that site, which is why the pattern survives even when the company has only one site left.
  • A number in a node name is an inventory reference, and the same number appearing in the third octet of the address means the naming and the addressing were planned together.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

3 upstream, 1 downstream and 7 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3356Level 3 Parent, LLC173
AS174Cogent Communications, LLC148
AS3257GTT Communications Inc.67

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

Shape and geography

IPv4 3 prefixes · 18.43K addresses IPv6 1 prefixes

CountryNamePrefixes
ESSpain4

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS15919
Registry name
INTERHOST
Registrant
INTERHOST-MNT
Abuse contact
abuse@interhost.com
Registered
2002-09-12
Last changed
2026-09-28
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 7 with no ROA
ROAs
0 authorising AS15919
ASPA
no ASPA record
IRR
100% registered · 7 of 7 announcements
Route objects
9 naming AS15919

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

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: 432 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

Cross-check