Autonomous system
AS4230 CLARO S.A.
Residential ARIN NSP
Summary
Claro S.A. (Embratel)
isp transit legacy
Autonomous System 4230 is operated by Claro S.A., the Brazilian arm of América Móvil, and carries the network that was built as Embratel, Brazil's long-standing long-distance and backbone carrier.
What it's used for
- Fixed broadband and business connectivity for millions of subscribers in Brazil.
- IP transit and backbone routing for downstream networks, making this one of the larger carrier networks in South America.
Notable
- Very large eyeball and carrier network: it originates several million IPv4 addresses, concentrated in the Brazilian 187.x, 189.x, 200.x, and 201.x ranges, and peers at Brazilian and international exchanges.
- A mixed network. Much of the space is residential, but a meaningful share is business access and transit, so an IP here is not automatically a home user.
Interesting
- Embratel was Brazil's state telecom monopoly before privatisation. The name survives in the network's registration long after the Claro rebrand.
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
Internet exchanges
Recorded at 12 exchanges in 4 countries, largest first.
| Exchange | Location | Their address |
|---|---|---|
| DE-CIX Frankfurt | Frankfurt, Germany | 80.81.195.51 |
| AMS-IX Amsterdam | Amsterdam, Netherlands | 80.249.209.141 |
| Equinix Internet Exchange Ashburn | Ashburn, United States | 206.126.237.55 |
| DE-CIX New York | New York, United States | 206.82.104.219 |
| DE-CIX Madrid | Madrid, Spain | 185.1.192.237 |
| New York International Internet Exchange | New York, United States | 198.32.160.180 |
| FL-IX - The Florida Internet Exchange / Community IX - Florida | Miami, United States | 206.41.108.171 |
| Equinix Internet Exchange Miami | Miami, United States | 198.32.243.126 |
Transit providers
34 upstream, 353 downstream and 500 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 44 prefixes · 5.16M addresses IPv6 6 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 50 |
Registry
Allocation record
- Registry
- ARIN
- Handle
4230- Registry name
- ASN4230
- Registrant
- CLARO S.A.
- Abuse contact
- Grupo de Segurança Internet da Embratel
- Registered
- 1999-11-16
- Last changed
- 2015-10-20
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Claro
- Also known as
- Claro S.A.
- Network type
- NSP
- Scope
- Regional
- Traffic ratio
- Mostly Inbound
- Peering policy
- Selective
- IRR as-set
RADB::AS-EMBRATELNET- Present at
- 11 exchanges
- Facilities
- 3 facilities
- Website
- http://www.embratel.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
- RPKI
- 90% valid · 78 valid, 6 with no ROA 3 RPKI-invalid
- ROAs
- 81 authorising AS4230
- ASPA
- no ASPA record
- IRR
- 97% registered · 84 of 87 announcements 1 other origin
- Route objects
- 86 naming AS4230
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: 431 networks and 1,768 prefixes, as published 2026-10-12. 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