subnet.im

AS52721TOLEDO FIBRA TELECOMUNICAÇAO LTDA

BrazilRegistryLACNICTypeEyeball

As of 27th September 2026, AS52721 (TOLEDO FIBRA TELECOMUNICAÇAO LTDA), an access network registered in Brazil with LACNIC, originates 21 IPv4 prefixes covering 9.2k addresses and 5 IPv6 prefixes. By IPv4 address space that makes it the 11,000th-largest of the 79,540 networks we see originating IPv4, and the 749th-largest of 7,985 in Brazil. It is seen behind 9 upstream networks, most often AS22356 (Durand do Brasil Ltda) and AS7195 (EdgeUno), and in front of 5 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 65% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

21

IPv6 prefixes

5

IPv4 addresses

9.2k

IPv6 /64s

8.6B

Upstream graph

The networks AS52721 is seen behind, one and two hops out, drawn from real AS paths.

AS52721Toward the internet core
Upstream graph for AS52721: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS52721TOLEDO FIBRA TELE…This networkAS6939Hurricane Electri…AS7195EdgeUnoAS14537Continent 8 LLCAS22356Durand do Brasil …AS266213PLANETCLICK TELEC…AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS1299Arelion (fka. Tel…AS32590Valve CorporationAS3356Lumen (Level 3)AS3491PCCW Global (HK) …AS13786Seaborn (Seabras …

Networks observed one and two hops upstream of AS52721 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

77

adjacent networks

Upstreams
912%
Peers
6382%
Downstreams
56%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS52721
NetworkCountryRelationshipPathsVantage pts
AS22356Durand do Brasil LtdaBRPeer2,914121
AS7195EdgeUnoCOPeer91648
AS6939Hurricane Electric LLCUSPeer7110
AS14537Continent 8 LLCUSPeer322
AS266213PLANETCLICK TELECOMUNICACOES LTDABRPeer161
AS32590Valve CorporationUSPeer151
AS35280F5 Networks SARLFRPeer151
AS132337AxclusiveSGPeer111
AS1031PEER 1031 LLCUSPeer61

Prefixes

All 26

The largest blocks AS52721 originates, widest first.

Largest prefixes originated by AS52721
PrefixAddressesVisibility
138.185.108.0/221k2/82
170.246.96.0/221k2/82
177.84.108.0/221k2/82
138.185.108.0/235122/82
138.185.110.0/235122/82
170.246.96.0/235122/82
170.246.98.0/235122/82
177.84.108.0/235122/82
177.84.110.0/235122/82
138.185.108.0/2425679/82

Routing health

How AS52721's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid100.0%26
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more65.4%17
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%34.6%9

Prefix sizes

IPv4 — 21 prefixes

IPv6 — 5 prefixes

  • /324.3B × /6420.0%1
  • /341.1B × /6480.0%4

Recent changes

Announcements that started or stopped since 29th Aug 2026.

No announcement by AS52721 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.