asn.dev

Autonomous system

AS15497 COLOCALL Internet Data Center ColoCALL

Hosting RIPE Content

IPv4 addresses 16.90K 20 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly SK
Exchanges 2 recorded by PCH
Upstreams 6 13 downstream
Flagged prefixes 0 none

Summary

Colocall

Slovakia · AI-generated

hosting business infrastructure

The only two addresses that answer are both the last address of their block.

What it's used for

  • A data centre and hosting operator. Twenty IPv4 prefixes and one IPv6 /32 announced from Slovakia, sixteen thousand addresses, across thirty-six observed BGP neighbours.

Notable

  • Both answering addresses end in the highest value an octet can hold, and both carry a label abbreviating broadcast, so the names published are for addresses nobody can be assigned.
  • Each of those two names also carries a host role: one a numbered machine, the other an abbreviation for virtual dedicated servers.
  • All twenty blocks share one netname stem with a country code that is not obviously the operator's brand, and only two distinct allocation dates between them, eleven years apart.
  • The holder's name runs two separate brands together before the corporate form, and the AS handle repeats one of them at both ends.
  • Eighteen addresses were queried for reverse DNS and two returned a name.

Interesting

  • Naming broadcast addresses while leaving the usable ones silent is backwards from the usual practice, and it is what happens when reverse entries are written by hand for infrastructure and never generated for customers.
  • Thirty-six neighbours for sixteen thousand addresses is dense interconnection, which is what a hosting business sells: many short paths to many networks.
  • Two allocation dates eleven years apart, and twenty routes between them, is a business that grew in two bursts and fragmented its space in the second.

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

Recorded at 2 exchanges in 1 country, largest first.

ExchangeLocationTheir address
Giganet Internet ExchangeKyiv, Ukraine185.1.62.16
GNM Internet Exchange UkraineKiev, Ukraine178.18.230.43

Transit providers

6 upstream, 13 downstream and 23 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6939Hurricane Electric LLC459
AS3223Voxility LLP336
AS174Cogent Communications, LLC295
AS24482SG.GS18
AS3303Swisscom (Schweiz) AG6
AS29632Netassist International EOOD2

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, 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 20 prefixes · 16.90K addresses IPv6 1 prefixes

CountryNamePrefixes
SKSlovakia21

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS15497
Registry name
Colocall
Registrant
lir-sk-1cloudlab-1-MNT
Abuse contact
abuse@1cloudlab.net
Registered
2002-09-20
Last changed
2024-09-26
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
Colocall Ltd.
Network type
Content
Scope
Regional
Traffic ratio
Balanced
Peering policy
Selective
IRR as-set
AS-COLOCALL
Present at
3 exchanges
Facilities
3 facilities
Website
https://www.colocall.net

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

Full detail
RPKI
95% valid · 18 valid, 1 with no ROA
ROAs
20 authorising AS15497
ASPA
no ASPA record
IRR
100% registered · 19 of 19 announcements
Route objects
77 naming AS15497

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: 442 networks and 1,773 prefixes, as published 2026-10-13. 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