Autonomous system
AS28267 LANTEC COMUNICACAO MULTIMIDIA LTDA
Unclassified APNIC
Summary
SIM Internet
residential isp brazil cable
AS28267 is operated by SIM Internet Provedores de Internet Eireli.
What it's used for
- The address space carries residential broadband access, evidenced by reverse DNS entries pointing to
as28267.sc.simfibra.com.br, indicating fiber-based customer premises equipment. - The AS announces 11,264 IPv4 addresses across 9 prefixes and maintains 4 observed neighbours, a ratio characteristic of an access or eyeball network rather than a transit provider.
Notable
- Registrants for the majority of prefixes align with the announcer, specifically
SIM INTERNET PROVEDORES DE INTERNET EIRELI., though one /24 block is registered toCogent Communications, LLCand another tofusao redes provedor de internet ltda. - The inventory consists of a mix of mid-sized blocks, including a /20 and multiple /22s, with a single IPv6 /40 prefix 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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
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
IPv4 9 prefixes · 11.26K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 10 |
Registry
Allocation record
- Registry
- APNIC
- Handle
28267- Registry name
- ASN28267
- Registrant
- SIM INTERNET PROVEDORES DE INTERNET EIRELI.
- Abuse contact
- joel Nauffal
- Registered
- 2008-11-11
- Last changed
- 2026-07-16
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 98% valid · 44 valid, 1 with no ROA
- ROAs
- 7 authorising AS28267
- ASPA
- no ASPA record
- IRR
- 98% registered · 44 of 45 announcements 1 other origin
- Route objects
- 148 naming AS28267
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 1,772 prefixes, as published 2026-10-15. 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