asn.dev

Autonomous system

AS273473 FLASHNET TELECOMUNICACOES LTDA

Residential ARIN

IPv4 addresses 0 0 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly BR
Exchanges 1 recorded by PCH
Upstreams 5 1 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
IX.br (PTT.br) São PauloSão Paulo, Brazil187.16.209.81

Transit providers

5 upstream, 1 downstream and 8 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS61855NOVA NET TECNOLOGIA LTDA - ME93
AS24482SG.GS7
AS263991WFNET INTERNET LTDA6
AS35280F5 Networks SARL4
AS37721Virtual Technologies & Solutions4

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-30, 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 0 prefixes · 0 addresses IPv6 1 prefixes

CountryNamePrefixes
BRBrazil1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
273473
Registry name
ASN273473
Registrant
FLASHNET TELECOMUNICACOES LTDA
Abuse contact
Max William Furlan
Registered
2024-03-12
Last changed
2025-01-28
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 7 with no ROA
ROAs
0 authorising AS273473
ASPA
no ASPA record
IRR
0% registered · 0 of 7 announcements
Route objects
0 naming AS273473

Reputation

Classification and threat

Residential Fixed-line consumer ISP. Addresses here are homes.

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: 447 networks and 1,849 prefixes, as published 2026-10-30. 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