Autonomous system
AS52711 FASTNET TELECOM
Unclassified LACNIC
Summary
Fastnet Telecom
isp residential cable dsl
FASTNET TELECOM is operated by Fastnet Telecom.
What it's used for
- The address space carries residential subscriber traffic, evidenced by reverse DNS entries such as
rev-177-84-91-254.dynamic.fastnettelecom.comandcgnat-179-96-186-254.dynamic.fastnettelecom.com. - The network announces 3,072 IPv4 addresses across 5 prefixes and 1 IPv6 prefix, with 6 observed neighbours, indicating a regional access provider rather than a transit hub.
- Traffic consists of consumer broadband connections, utilizing dynamic host naming and CGNAT for subscriber address management.
Notable
- All registrants for the announced prefixes are listed as
FASTNET TELECOM, matching the AS holder. - The address inventory is subdivided into five distinct IPv4 blocks, including a /22 and multiple /24s, consistent with a segmented regional ISP deployment.
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 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| IX.br (PTT.br) Fortaleza | Fortaleza, Brazil | 45.68.75.105 |
| IX.br (PTT.br) Recife | Recife, Brazil | 200.219.147.230 |
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 5 prefixes · 3.07K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| BR | Brazil | 6 |
Registry
Allocation record
- Registry
- LACNIC
- Handle
52711- Registry name
- ASN52711
- Registrant
- FASTNET TELECOM
- Abuse contact
- Daniel Antonio Passos Franco
- Registered
- 2013-01-03
- Last changed
- 2021-09-22
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 7 with no ROA
- ROAs
- 0 authorising AS52711
- ASPA
- no ASPA record
- IRR
- 100% registered · 7 of 7 announcements
- Route objects
- 30 naming AS52711
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: 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