asn.dev

Autonomous system

AS35205 RFT-BRANDENBURG

Unclassified RIPE

IPv4 addresses 28.93K 13 prefixes
IPv6 prefixes 3 counted as prefixes, not addresses
Countries 1 mostly DE
Exchanges 2 recorded by PCH
Upstreams 20 0 downstream
Flagged prefixes 0 none

Summary

RFT Kabel Brandenburg

Germany · AI-generated

cable residential regional isp

The AS handle RFT-BRANDENBURG is held by RFT Kabel Brandenburg GmbH.

What it's used for

  • The address space carries residential cable and DSL traffic, evidenced by reverse DNS entries such as cpe-5054C40.ip-pool.rftonline.net and 4d4ea400.ip-pool.rftonline.net.
  • With 28,928 IPv4 addresses announced across 13 prefixes and 117 observed neighbours, the network functions as a regional access provider rather than a transit hub.

Notable

  • Registrants include both RFT Kabel Brandenburg GmbH and RFT Kabel Nord GmbH, with netnames like DE-BKG-NEURUPPIN-20010814 and RFT-NORD-20140120 indicating shared or inherited infrastructure.
  • The address inventory is finely subdivided into multiple /21 and /22 blocks, reflecting site-by-site segmentation typical of a regional cable operator.

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
DE-CIX FrankfurtFrankfurt, Germany80.81.193.62
Berlin Commercial Internet ExchangeBerlin, Germany193.178.185.67

Transit providers

20 upstream, 0 downstream and 31 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS58243TELE AG824
AS6939Hurricane Electric LLC139
AS34549meerfarbig GmbH & Co. KG64
AS24482SG.GS19
AS34019Hivane Association19
AS48362Stadtwerke Feldkirch19
AS212024Marc Schmitt19
AS6797GlobalConnect AB14

All 20 upstreams →

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 13 prefixes · 28.93K addresses IPv6 3 prefixes

CountryNamePrefixes
DEGermany16

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS35205
Registry name
RFT-Brandenburg
Registrant
RFT Kabel Brandenburg GmbH
Abuse contact
abuse_ripe@rftkabel.de
Registered
2008-07-14
Last changed
2024-04-17
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 23 valid, 0 with no ROA
ROAs
26 authorising AS35205
ASPA
no ASPA record
IRR
100% registered · 23 of 23 announcements
Route objects
21 naming AS35205

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: 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