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AS61637RADIOBRAS TELECOM LTDA ME

BrazilRegistryLACNIC

As of 27th September 2026, AS61637 (RADIOBRAS TELECOM LTDA ME), a network registered in Brazil with LACNIC, originates 7 IPv4 prefixes covering 3.1k addresses and 31 IPv6 prefixes. By IPv4 address space that makes it the 20,115th-largest of the 79,540 networks we see originating IPv4, and the 1,776th-largest of 7,985 in Brazil. It is seen behind 9 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS266525 (Eurocorp Vialux Internet Eireli), and in front of 1 downstream network. 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

7

IPv6 prefixes

31

IPv4 addresses

3.1k

IPv6 /64s

21.5B

Upstream graph

The networks AS61637 is seen behind, one and two hops out, drawn from real AS paths.

AS61637Toward the internet core
Upstream graph for AS61637: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS61637RADIOBRAS TELECOM…This networkAS6939Hurricane Electri…AS14537Continent 8 LLCAS32590Valve CorporationAS35280F5 Networks SARLAS266525Eurocorp Vialux I…AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS2914NTT America, Inc.AS3356Lumen (Level 3)AS1299Arelion (fka. Tel…AS28294GIGA MAIS FIBRA T…AS37468Angola Cables

Networks observed one and two hops upstream of AS61637 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

49

adjacent networks

Upstreams
918%
Peers
3980%
Downstreams
12%

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

Upstreams of AS61637
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer61321
AS266525Eurocorp Vialux Internet EireliBRPeer444121
AS14537Continent 8 LLCUSPeer622
AS35280F5 Networks SARLFRPeer592
AS32590Valve CorporationUSPeer392
AS1000LINK AMERICANUSPeer311
AS266213PLANETCLICK TELECOMUNICACOES LTDABRPeer311
AS137409GSL Networks Pty LTDAUPeer281
AS7195EdgeUnoCOPeer41

Prefixes

All 38

The largest blocks AS61637 originates, widest first.

Largest prefixes originated by AS61637
PrefixAddressesVisibility
131.100.132.0/221k82/82
131.100.132.0/2351282/82
131.100.134.0/2351282/82
131.100.132.0/242562/82
131.100.133.0/242562/82
131.100.134.0/242562/82
131.100.135.0/242562/82
2804:1c18::/324.3B × /6463/65
2804:1c18::/332.1B × /6463/65
2804:1c18:8000::/332.1B × /6463/65

Routing health

How AS61637'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%38
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more15.8%6
  • Partially propagated40% to 90%73.7%28
  • Seen by few peersUnder 40%10.5%4

Prefix sizes

IPv4 — 7 prefixes

IPv6 — 31 prefixes

  • /324.3B × /643.2%1
  • /332.1B × /646.5%2
  • /341.1B × /6412.9%4
  • /35537M × /6425.8%8
  • /36268M × /6451.6%16

Recent changes

Announcements that started or stopped since 29th Aug 2026.

No announcement by AS61637 started or stopped in this period.

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