subnet.im

AS263928JBMNET TELECOM

BrazilRegistryLACNIC

As of 23rd October 2026, AS263928 (JBMNET TELECOM), a network registered in Brazil with LACNIC, originates 4 IPv4 prefixes covering 1k addresses and 4 IPv6 prefixes. By IPv4 address space that makes it the 35,835th-largest of the 79,666 networks we see originating IPv4, and the 5,638th-largest of 7,987 in Brazil. It is seen behind 10 upstream networks, most often AS53181 (Avanca Telecom e Servicos LTDA) and AS52925 (Ascenty Data Centers e Telecomunicações…), and in front of 7 downstream networks. None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

4

IPv6 prefixes

4

IPv4 addresses

1k

IPv6 /64s

4.3B

Upstream graph

The networks AS263928 is seen behind, one and two hops out, drawn from real AS paths.

AS263928Toward the internet core
Upstream graph for AS263928: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS263928JBMNET TELECOMThis networkAS28343Unifique Telecomu…AS52925Ascenty Data Cent…AS53181Avanca Telecom e …AS61568ALOO TELECOM - FS…AS267201Fiber One Telecom…AS7195EdgeUnoAS3356Lumen (Level 3)AS14537Continent 8 LLCAS13786Seaborn (Seabras …AS37468Angola CablesAS2914NTT America, Inc.AS6939Hurricane Electri…

Networks observed one and two hops upstream of AS263928 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

72

adjacent networks

Upstreams
1014%
Peers
5576%
Downstreams
710%

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

Upstreams of AS263928
NetworkCountryRelationshipPathsVantage pts
AS53181Avanca Telecom e Servicos LTDABRPeer542111
AS52925Ascenty Data Centers e Telecomunicações S/ABRPeer14287
AS61568ALOO TELECOM - FSF TECNOLOGIA SABRPeer141141
AS28343Unifique Telecomunicações SABRPeer140140
AS267201Fiber One Telecomunicações EIRELIBRPeer139139
AS13786Seaborn (Seabras USA, LLC)USPeer11713
AS6939Hurricane Electric LLCUSPeer6223
AS14537Continent 8 LLCUSPeer143
AS266213PLANETCLICK TELECOMUNICACOES LTDABRPeer102
AS35280F5 Networks SARLFRPeer82

Prefixes

The largest blocks AS263928 originates, widest first.

Largest prefixes originated by AS263928
PrefixAddressesVisibility
138.219.116.0/2425677/77
138.219.117.0/2425677/77
138.219.118.0/2425677/77
138.219.119.0/2425677/77
2804:27e8::/324.3B × /6463/64
2804:27e8:fc00::/4016.8M × /6462/64
2804:27e8:fd00::/4016.8M × /6464/64
2804:27e8:fe00::/4016.8M × /6462/64

Routing health

How AS263928'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

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%8

Propagation

  • Globally propagated90% of full-feed peers or more100.0%8
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 4 prefixes

IPv6 — 4 prefixes

  • /324.3B × /6425.0%1
  • /4016.8M × /6475.0%3

Recent changes

Announcements that started or stopped since 23rd Sept 2026.

  • Announced2804:27e8::/3230th Sept 2026
  • Withdrawn2804:27e8::/3229th Sept 2026

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