asn.dev

Autonomous system

AS39328 SISNET

Unclassified RIPE Cable/DSL/ISP

IPv4 addresses 4.10K 3 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly ES
Exchanges 1 recorded by PCH
Upstreams 9 1 downstream
Flagged prefixes 0 none

Summary

Sisnet

Spain · AI-generated

isp residential cable dsl

The AS handle SISNET is operated by Sisnet Nuevas Tecnologias S.L.

What it's used for

  • The address space carries residential and access traffic, evidenced by reverse DNS entries such as 254.red.45.67.182.sisnet.com.es and 254.red.185.154.254.sisnet.com.es, and netnames ES-SISNET-20190219 and ES-SISNET-20160606.
  • The network announces 2048 IPv4 addresses across 2 prefixes and maintains 22 observed neighbours, a ratio consistent with an access provider rather than a transit hub.
  • Traffic from this AS consists of subscriber eyeballs for cable and DSL services in the Pamplona region of Spain.

Notable

  • Registrants for both announced prefixes are SISNET NUEVAS TECNOLOGIAS S.L., matching the AS holder.
  • The address inventory is compact, consisting of two /22 blocks totaling 2048 addresses, 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

Full topology · Graph

Internet exchanges

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
DE-CIX MadridMadrid, Spain185.1.192.177

Transit providers

9 upstream, 1 downstream and 10 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3262SAREnet, S.A.364
AS34696MISMELINK NETWORKS, SL122
AS6939Hurricane Electric LLC77
AS34549meerfarbig GmbH & Co. KG36
AS24482SG.GS9
AS37721Virtual Technologies & Solutions9
AS5405Inter.link GmbH4
AS33891Core-Backbone GmbH2

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 · 4.10K addresses IPv6 0 prefixes

CountryNamePrefixes
ESSpain3

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS39328
Registry name
Sisnet
Registrant
es-sisnet-1-mnt
Abuse contact
sissecur@sisasesores.com
Registered
2018-05-30
Last changed
2025-08-21
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
Sisnet
Network type
Cable/DSL/ISP
Scope
Not Disclosed
Traffic ratio
Not Disclosed
Peering policy
Open
IRR as-set
AS-SISNET-TRANSIT
Present at
1 exchanges
Website
http://www.sisnet.com.es

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
100% valid · 11 valid, 0 with no ROA
ROAs
18 authorising AS39328
ASPA
no ASPA record
IRR
100% registered · 11 of 11 announcements
Route objects
38 naming AS39328

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

Cross-check