subnet.im

AS61573IP Telecom BR

BrazilRegistryLACNIC

As of 11th November 2026, AS61573 (IP Telecom BR), a network registered in Brazil with LACNIC, originates 5 IPv4 prefixes covering 2k addresses and 14 IPv6 prefixes. By IPv4 address space that makes it the 25,853rd-largest of the 80,743 networks we see originating IPv4, and the 3,583rd-largest of 8,031 in Brazil. It is seen behind 10 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS37468 (Angola Cables), and in front of 6 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 16% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

5

IPv6 prefixes

14

IPv4 addresses

2k

IPv6 /64s

4.4B

Upstream graph

The networks AS61573 is seen behind, one and two hops out, drawn from real AS paths.

AS61573Toward the internet core
Upstream graph for AS61573: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS61573IP Telecom BRThis networkAS6939Hurricane Electri…AS32590Valve CorporationAS37468Angola CablesAS52468UFINET PANAMA S.A.AS58453China Mobile Inte…AS20130Depaul UniversityAS132337AxclusiveAS1299Arelion (fka. Tel…AS3257GTT Communication…AS3356Lumen (Level 3)AS6453TATA Communicatio…

Networks observed one and two hops upstream of AS61573 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

2,453

adjacent networks

Upstreams
100%
Peers
2,43799%
Downstreams
60%

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

Upstreams of AS61573
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer1,182106
AS37468Angola CablesAOPeer61576
AS52468UFINET PANAMA S.A.PAPeer7715
AS32590Valve CorporationUSPeer512
AS58453China Mobile InternationalHKPeer432
AS52925Ascenty Data Centers e Telecomunicações S/ABRPeer372
AS266213PLANETCLICK TELECOMUNICACOES LTDABRPeer162
AS35280F5 Networks SARLFRPeer162
AS14537Continent 8 LLCUSPeer131
AS1000LINK AMERICANUSPeer111

Prefixes

The largest blocks AS61573 originates, widest first.

Largest prefixes originated by AS61573
PrefixAddressesVisibility
138.122.60.0/221k75/76
138.122.60.0/242564/76
138.122.61.0/242564/76
138.122.62.0/242564/76
138.122.63.0/242564/76
2804:25e4::/324.3B × /6461/63
2804:25e4::/4016.8M × /642/63
2804:25e4:500::/4016.8M × /642/63
2804:25e4:700::/4016.8M × /642/63
2804:25e4:800::/4016.8M × /642/63

Routing health

How AS61573'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%19
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more15.8%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%84.2%16

Prefix sizes

IPv4 — 5 prefixes

IPv6 — 14 prefixes

  • /324.3B × /647.1%1
  • /4016.8M × /6428.6%4
  • /4865.5k × /6464.3%9

Recent changes

Announcements that started or stopped since 12th Oct 2026.

25 announced and 25 withdrawn in all; the most recent are shown.

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