Autonomous system
AS52977 Sul Online Telecom Ltda - EPP
Residential APNIC
Summary
Sul Online Telecom
isp residential cable dsl
AS52977 is operated by Sul Online Telecom Ltda - EPP.
What it's used for
- The address space carries residential and business subscriber traffic, evidenced by reverse DNS entries such as
177-39-74-0.dynamic.sulonline.netand200-53-10-0.sulonline.net. - The network announces 6144 IPv4 addresses across 4 prefixes and 23 IPv6 prefixes, while maintaining 24 observed neighbours, a ratio consistent with a regional access provider.
- Traffic consists of subscriber eyeballs for cable and DSL services in the southern region of Brazil.
Notable
- Registrants for the available prefixes (
200.53.8.0/21,143.255.96.0/22,170.231.4.0/22) match the announcer, Sul Online Telecom Ltda - EPP. - The inventory comprises four distinct IPv4 blocks and a fragmented set of IPv6 prefixes under the
2804:768::/37space.
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 3 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| IX.br (PTT.br) São Paulo | São Paulo, Brazil | 187.16.219.6 |
| IX.br (PTT.br) Porto Alegre | Porto Alegre, Brazil | 177.52.38.213 |
| IX.br (PTT.br) Florianópolis | Florianópolis, Brazil | 200.219.141.146 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 4 prefixes · 6.14K addresses IPv6 23 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 27 |
Registry
Allocation record
- Registry
- APNIC
- Handle
52977- Registry name
- ASN52977
- Registrant
- Sul Online Telecom Ltda - EPP
- Abuse contact
- Márcio Elias Hahn do Nascimento
- Registered
- 2011-03-25
- Last changed
- 2019-10-24
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 11 valid, 0 with no ROA
- ROAs
- 49 authorising AS52977
- ASPA
- no ASPA record
- IRR
- 100% registered · 11 of 11 announcements
- Route objects
- 46 naming AS52977
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 1,775 prefixes, as published 2026-10-11. 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