subnet.im

AS28198SEMPRE TELECOMUNICACOES LTDA

BrazilRegistryLACNIC

As of 27th September 2026, AS28198 (SEMPRE TELECOMUNICACOES LTDA), a network registered in Brazil with LACNIC, originates 223 IPv4 prefixes covering 211k addresses and 142 IPv6 prefixes. By IPv4 address space that makes it the 1,273rd-largest of the 79,540 networks we see originating IPv4, and the 32nd-largest of 7,985 in Brazil. It is seen behind 37 upstream networks, most often AS3356 (Lumen (Level 3)) and AS6939 (Hurricane Electric LLC), and in front of 43 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 36% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

223

IPv6 prefixes

142

IPv4 addresses

211k

IPv6 /64s

5.5B

Upstream graph

The networks AS28198 is seen behind, one and two hops out, drawn from real AS paths.

AS28198Toward the internet core
Upstream graph for AS28198: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS28198SEMPRE TELECOMUNI…This networkAS3356Lumen (Level 3)AS6939Hurricane Electri…AS14537Continent 8 LLCAS16735Algar TelecomAS53062ACESSOLINE TELECO…AS3549Lumen (fka. Globa…AS2914NTT America, Inc.AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS6762Telecom Italia Sp…AS52320V.tal (GlobeNet)

Networks observed one and two hops upstream of AS28198 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

357

adjacent networks

Upstreams
3710%
Peers
27778%
Downstreams
4312%

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

Upstreams of AS28198
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer14,070131
AS6939Hurricane Electric LLCUSPeer5,62838
AS16735Algar TelecomBRPeer1,352147
AS53062ACESSOLINE TELECOMUNICACOES LTDABRPeer1,305108
AS14537Continent 8 LLCUSPeer6964
AS35280F5 Networks SARLFRPeer5955
AS32590Valve CorporationUSPeer5362
AS1000LINK AMERICANUSPeer4992
AS7713PT Telkom Indonesia TbkIDPeer3403
AS18106Viewqwest Pte LtdSGPeer3002

Prefixes

All 365

The largest blocks AS28198 originates, widest first.

Largest prefixes originated by AS28198
PrefixAddressesVisibility
177.130.64.0/204.1k81/82
177.131.0.0/204.1k82/82
177.185.16.0/204.1k81/82
186.194.240.0/204.1k81/82
187.84.240.0/204.1k81/82
187.109.0.0/204.1k81/82
189.51.16.0/204.1k81/82
189.90.192.0/204.1k81/82
191.5.32.0/204.1k82/82
177.52.48.0/212k82/82

Routing health

How AS28198'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%365
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more35.9%131
  • Partially propagated40% to 90%4.9%18
  • Seen by few peersUnder 40%59.2%216

Prefix sizes

IPv4 — 223 prefixes

IPv6 — 142 prefixes

  • /324.3B × /640.7%1
  • /36268M × /641.4%2
  • /4016.8M × /6410.6%15
  • /418.4M × /6412.0%17
  • /424.2M × /6421.1%30
  • /432.1M × /6439.4%56
  • /4865.5k × /6414.8%21

Recent changes

Announcements that started or stopped since 29th Aug 2026.

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