asn.dev

Autonomous system

AS43809 FORSS Forss Webservice AB Forss Bredband

Unclassified RIPE

IPv4 addresses 6.66K 6 prefixes
IPv6 prefixes 2 counted as prefixes, not addresses
Countries 1 mostly SE
Exchanges 3 recorded by PCH
Upstreams 9 0 downstream
Flagged prefixes 0 none

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 3 exchanges in 1 country, largest first.

ExchangeLocationTheir address
STHIX - StockholmStockholm, Sweden192.121.80.108
Stockholm Internet ExchangeStockholm, Sweden192.121.80.108
Netnod Sundsvall- GävleSundsvall, Sweden194.68.128.45

Transit providers

9 upstream, 0 downstream and 9 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS202395Fiberaccessbolaget i Sverige AB194
AS6939Hurricane Electric LLC59
AS1257Tele2 Sverige AB54
AS50304Blix Solutions AS12
AS5405Inter.link GmbH6
AS12552GlobalConnect AB6
AS20764CJSC RASCOM6
AS24482SG.GS6

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 6 prefixes · 6.66K addresses IPv6 2 prefixes

CountryNamePrefixes
SESweden8

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS43809
Registry name
FORSS
Registrant
FORSS-MNT
Abuse contact
abuse@forss.net
Registered
2016-12-21
Last changed
2025-12-21
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 6 valid, 0 with no ROA
ROAs
9 authorising AS43809
ASPA
no ASPA record
IRR
100% registered · 6 of 6 announcements
Route objects
9 naming AS43809

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: 436 networks and 1,771 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