asn.dev

Autonomous system

AS61817 Halley Telecom Comercio & Servico Ltda

Unclassified LACNIC Cable/DSL/ISP

IPv4 addresses 5.12K 2 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly BR
Exchanges 3 recorded by PCH
Upstreams 6 3 downstream
Flagged prefixes 0 none

Summary

Halley Telecom

Brazil · AI-generated

isp residential brazil cable

AS61817 is operated by Halley Telecom Comercio & Servico Ltda.

What it's used for

  • The address space carries residential and business access traffic, evidenced by reverse DNS entries pointing to halleytelecom.com.br and netnames like HALLEY-TELECOM-CGNT-NET-1.
  • The AS announces 5376 IPv4 addresses across 3 prefixes and 1 IPv6 prefix, while maintaining 31 observed neighbours. This ratio of moderate address space to a significant number of peering partners indicates a regional access provider with substantial transit and peering requirements.
  • Traffic from this AS consists of subscriber eyeballs and local business connectivity, as Halley Telecom operates as a wired telecommunications carrier and cable/DSL ISP in the Brazilian state of Pará.

Notable

  • Registrants for the two largest prefixes, 38.56.0.0/20 and 201.150.148.0/22, align with the AS holder, Halley Telecom. The smaller prefix 38.172.140.0/24 is registered to Cogent Communications, LLC, indicating a block of leased or transit space.
  • The inventory includes a large /20 block and a /22 block, both registered to Halley, alongside a single /24 from Cogent, reflecting a mix of owned and acquired address space.

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 3 exchanges in 1 country, largest first.

ExchangeLocationTheir address
IX.br (PTT.br) São PauloSão Paulo, Brazil187.16.218.54
IX.br (PTT.br) FortalezaFortaleza, Brazil45.68.72.18
IX.br (PTT.br) BelémBelém, Brazil187.16.195.16

Transit providers

6 upstream, 3 downstream and 15 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6939Hurricane Electric LLC116
AS7195S.A.S114
AS13786Seabras 1 USA, LLC35
AS24482SG.GS9
AS35280F5 Networks SARL8
AS37721Virtual-Technologies-Solutions-SA8

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, 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 2 prefixes · 5.12K addresses IPv6 1 prefixes

CountryNamePrefixes
BRBrazil3

Registry

Allocation record

LACNIC · via Atlas (registry + RDAP)
Registry
LACNIC
Handle
61817
Registry name
ASN61817
Registrant
Halley Telecom Comercio & Serviço Ltda
Abuse contact
Gilvandro Ferreira da Silva
Registered
2014-06-27
Last changed
2022-04-27
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
Halley
Also known as
Halley
Network type
Cable/DSL/ISP
Scope
Global
Traffic ratio
Balanced
Peering policy
Open
IRR as-set
AS61817
Facilities
1 facilities
Website
https://www.halleytelecom.com

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

Full detail
RPKI
0% valid · 0 valid, 12 with no ROA
ROAs
1 authorising AS61817
ASPA
no ASPA record
IRR
92% registered · 11 of 12 announcements
Route objects
60 naming AS61817

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: 445 networks and 1,817 prefixes, as published 2026-10-27. 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