asn.dev

Autonomous system

AS203605 SYNOTIO-AS

Unclassified RIPE

IPv4 addresses 1.54K 2 prefixes
IPv6 prefixes 14 counted as prefixes, not addresses
Countries 1 mostly SE
Exchanges 1 recorded by PCH
Upstreams 7 0 downstream
Flagged prefixes 0 none

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Netnod Sundsvall- GävleSundsvall, Sweden194.68.128.154

Transit providers

7 upstream, 0 downstream and 11 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS12552GlobalConnect AB160
AS6939Hurricane Electric LLC89
AS3399Obenet AB61
AS50304Blix Solutions AS8
AS24482SG.GS7
AS20764CJSC RASCOM4
AS20473The Constant Company, LLC3

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 2 prefixes · 1.54K addresses IPv6 14 prefixes

CountryNamePrefixes
SESweden16

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS203605
Registry name
SYNOTIO-AS
Registrant
Synotio AB
Abuse contact
noc@synotio.se
Registered
2015-12-11
Last changed
2026-03-30
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
71% valid · 5 valid, 2 with no ROA
ROAs
3 authorising AS203605
ASPA
no ASPA record
IRR
100% registered · 7 of 7 announcements
Route objects
10 naming AS203605

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: 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