subnet.im

AS28198SEMPRE TELECOMUNICACOES LTDA

BrazilRegistryLACNIC

As of 12th November 2026, AS28198 (SEMPRE TELECOMUNICACOES LTDA), a network registered in Brazil with LACNIC, originates 225 IPv4 prefixes covering 212k addresses and 155 IPv6 prefixes. By IPv4 address space that makes it the 1,292nd-largest of the 80,772 networks we see originating IPv4, and the 33rd-largest of 8,032 in Brazil. It is seen behind 35 upstream networks, most often AS3356 (Lumen (Level 3)) and AS6939 (Hurricane Electric LLC), and in front of 54 downstream networks. Over 99% of its announcements have 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

225

IPv6 prefixes

155

IPv4 addresses

212k

IPv6 /64s

5.3B

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: 12 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…AS7713PT Telkom Indones…AS16735Algar TelecomAS53062ACESSOLINE TELECO…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS20130Depaul UniversityAS132337AxclusiveAS35280F5 Networks SARLAS6762Telecom 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

330

adjacent networks

Upstreams
3511%
Peers
24173%
Downstreams
5416%

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

Upstreams of AS28198
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer17,516141
AS6939Hurricane Electric LLCUSPeer5,55235
AS16735Algar TelecomBRPeer1,827140
AS53062ACESSOLINE TELECOMUNICACOES LTDABRPeer72581
AS7713PT Telkom Indonesia TbkIDPeer4193
AS18106Viewqwest Pte LtdSGPeer3662
AS24482SG.GSSGPeer2124
AS58511Swoop (Anycast Global Backbone)AUPeer2022
AS7768Nuh Ahmet Firat trading as TEKNET YAZILIM VE BILGISAYAR TEKNOLOJILERITRPeer2022
AS8888xTom Pty LtdAUPeer2022

Prefixes

All 380

The largest blocks AS28198 originates, widest first.

Largest prefixes originated by AS28198
PrefixAddressesVisibility
177.130.64.0/204.1k78/78
177.131.0.0/204.1k78/78
177.185.16.0/204.1k78/78
186.194.240.0/204.1k78/78
187.84.240.0/204.1k78/78
187.109.0.0/204.1k78/78
189.51.16.0/204.1k78/78
189.90.192.0/204.1k78/78
191.5.32.0/204.1k78/78
177.52.48.0/212k78/78

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

  • Valid99.7%379
  • Invalid0.0%0
  • No ROA0.3%1

Propagation

  • Globally propagated90% of full-feed peers or more35.5%135
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%64.5%245

Prefix sizes

IPv4 — 225 prefixes

IPv6 — 155 prefixes

  • /324.3B × /640.6%1
  • /36268M × /640.6%1
  • /4016.8M × /6411.0%17
  • /418.4M × /6412.3%19
  • /424.2M × /6421.9%34
  • /432.1M × /6441.3%64
  • /4865.5k × /6412.3%19

Recent changes

Announcements that started or stopped since 13th Oct 2026.

128 announced and 111 withdrawn in all; the most recent are shown.

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