asn.dev

Autonomous system

AS23105 BCMG INTERNET LTDA

Residential ARIN

IPv4 addresses 10.75K 4 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly BR
Exchanges 1 recorded by PCH
Upstreams 6 0 downstream
Flagged prefixes 0 none

Summary

BCMG Internet

Brazil · AI-generated

isp residential regional cable

AS23105 is operated by BCMG Internet Ltda, a regional internet service provider serving the Baixada Santista metropolitan area in São Paulo.

What it's used for

  • The address space carries residential broadband access, as evidenced by reverse DNS entries such as dinamico-1778.bandalarga.bcmg.com.br and 254-187-50-189.corp.bcmg.com.br.
  • The AS announces 10,752 IPv4 addresses across 4 prefixes, with 27 observed routing neighbours, indicating a role as an access network rather than a transit provider.

Notable

  • All four announced prefixes are registered to BCMG INTERNET LTDA, with netnames 99525, 25329, 523653, and 547936, confirming consistent ownership.
  • The operator is also known as Bignet, a cable/DSL ISP with regional scope in Brazil.
  • The inventory consists of four contiguous IPv4 blocks in Brazil, with no IPv6 prefixes announced.

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 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
IX.br (PTT.br) São PauloSão Paulo, Brazil187.16.209.72

Transit providers

6 upstream, 0 downstream and 6 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS13786Seabras 1 USA, LLC236
AS4230CLARO S.A.232
AS6939Hurricane Electric LLC90
AS24482SG.GS12
AS35280F5 Networks SARL12
AS37721Virtual Technologies & Solutions12

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, 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 4 prefixes · 10.75K addresses IPv6 0 prefixes

CountryNamePrefixes
BRBrazil4

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
23105
Registry name
ASN23105
Registrant
BCMG INTERNET LTDA
Abuse contact
Peter Franz Woiblet Junior
Registered
2002-01-28
Last changed
2020-11-18
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 20 with no ROA
ROAs
0 authorising AS23105
ASPA
no ASPA record
IRR
100% registered · 20 of 20 announcements
Route objects
17 naming AS23105

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: 442 networks and 1,781 prefixes, as published 2026-10-16. 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