asn.dev

Autonomous system

AS28278 TELLFREE BRASIL TELEFONIA IP S.A.

Hosting LACNIC

IPv4 addresses 3.58K 6 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly BR
Exchanges 0 recorded by PCH
Upstreams 4 0 downstream
Flagged prefixes 0 none

Summary

Tellfree Brasil Telefonia IP

Brazil · AI-generated

voip telecom business

The AS handle TELLFREE BRASIL TELEFONIA IP S.A. is held by Tellfree Brasil Telefonia IP S.A.

What it's used for

  • The space carries VoIP and telecommunications infrastructure, as indicated by the registrant name "Telefonia IP" and the netname 92589 associated with the majority of prefixes.
  • The AS announces 3584 IPv4 addresses across 6 prefixes and 1 IPv6 prefix, with 4 observed neighbours. This ratio of address space to peering partners suggests a specialized access or service provider network rather than a large-scale transit carrier.

Notable

  • Registrants for the largest prefixes (201.33.208.0/22, 201.33.220.0/22, 201.33.212.0/23, 201.33.216.0/23) align with the announcer, Tellfree Brasil Telefonia IP S.A., while smaller blocks are registered to KOLMEYA INOVACAO EM SISTEMAS LTDA and Lemit Tecnologia da Informacao Ltda - ME.
  • The address inventory is concentrated in the 201.33.208.0/22 range, with a single IPv6 block 2804:8b2c:8000::/33 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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

4 upstream, 0 downstream and 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS16735ALGAR TELECOM S/A404
AS11432Telium Telecomunicacoes Ltda391
AS10429TELEFONICA BRASIL S.A63
AS273716Lemit Tecnologia da Informacao Ltda - ME34

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 6 prefixes · 3.58K addresses IPv6 1 prefixes

CountryNamePrefixes
BRBrazil7

Registry

Allocation record

LACNIC · via Atlas (registry data)
Registry
LACNIC
Registered
2007-03-27
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 16 with no ROA
ROAs
0 authorising AS28278
ASPA
no ASPA record
IRR
88% registered · 14 of 16 announcements 1 other origin
Route objects
17 naming AS28278

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

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: 440 networks and 1,773 prefixes, as published 2026-10-13. 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