asn.dev

Autonomous system

AS266400 AS266400 - Ferenz Networks

Unclassified LACNIC NSP

IPv4 addresses 5.38K 11 prefixes
IPv6 prefixes 11 counted as prefixes, not addresses
Countries 1 mostly BR
Exchanges 9 recorded by PCH
Upstreams 6 5 downstream
Flagged prefixes 0 none

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 9 exchanges in 4 countries, largest first.

ExchangeLocationTheir address
IX.br (PTT.br) São PauloSão Paulo, Brazil187.16.222.152
DE-CIX FrankfurtFrankfurt, Germany80.81.196.41
IX.br (PTT.br) FortalezaFortaleza, Brazil45.68.72.103
AMS-IX AmsterdamAmsterdam, Netherlands80.249.208.142
IX.br (PTT.br) Porto AlegrePorto Alegre, Brazil177.52.39.13
IX.br (PTT.br) BrasíliaBrasília, Brazil45.184.144.118
DE-CIX New YorkNew York, United States206.82.104.98
IX.br (PTT.br) CuritibaCuritiba, Brazil45.184.146.235

Transit providers

6 upstream, 5 downstream and 20 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3356Level 3 Parent, LLC1,693
AS6939Hurricane Electric LLC431
AS16735ALGAR TELECOM S/A75
AS24482SG.GS44
AS37721Virtual Technologies & Solutions44
AS61624INFNOC TECNOLOGIA LTDA2

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-04, 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 11 prefixes · 5.38K addresses IPv6 11 prefixes

CountryNamePrefixes
BRBrazil22

Registry

Allocation record

LACNIC · via Atlas (registry + RDAP)
Registry
LACNIC
Handle
266400
Registry name
ASN266400
Registrant
Ferenz Networks
Abuse contact
Ferenz Networks - NOC
Registered
2016-12-06
Last changed
2023-12-13
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
Ferenz Networks
Also known as
FERENZ
Network type
NSP
Scope
Global
Traffic ratio
Balanced
Peering policy
Selective
IRR as-set
AS266400:AS-FERENZ
Present at
7 exchanges
Facilities
6 facilities
Website
https://www.ferenz.com.br

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 · 44 valid, 0 with no ROA
ROAs
12 authorising AS266400
ASPA
no ASPA record
IRR
100% registered · 44 of 44 announcements
Route objects
104 naming AS266400

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: 453 networks and 1,853 prefixes, as published 2026-11-05. 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