subnet.im

AS28649Desktop Sigmanet Comunicação Multimídia SA

BrazilRegistryLACNICTypeEyeball

As of 25th October 2026, AS28649 (Desktop Sigmanet Comunicação Multimídia…), an access network registered in Brazil with LACNIC, originates 266 IPv4 prefixes covering 351k addresses and 79 IPv6 prefixes. By IPv4 address space that makes it the 873rd-largest of the 79,675 networks we see originating IPv4, and the 22nd-largest of 7,990 in Brazil. It is seen behind 15 upstream networks, most often AS37468 (Angola Cables) and AS3356 (Lumen (Level 3)), and in front of 29 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 38% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

266

IPv6 prefixes

79

IPv4 addresses

351k

IPv6 /64s

81.6B

Upstream graph

The networks AS28649 is seen behind, one and two hops out, drawn from real AS paths.

AS28649Toward the internet core
Upstream graph for AS28649: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS28649Desktop Sigmanet …This networkAS3356Lumen (Level 3)AS6939Hurricane Electri…AS13786Seaborn (Seabras …AS22356Durand do Brasil …AS37468Angola CablesAS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS20130Depaul UniversityAS132337AxclusiveAS14537Continent 8 LLCAS1299Arelion (fka. Tel…AS3257GTT Communication…

Networks observed one and two hops upstream of AS28649 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

133

adjacent networks

Upstreams
1511%
Peers
8967%
Downstreams
2922%

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

Upstreams of AS28649
NetworkCountryRelationshipPathsVantage pts
AS37468Angola CablesAOPeer6,56785
AS3356Lumen (Level 3)USPeer4,249109
AS6939Hurricane Electric LLCUSPeer4,22533
AS13786Seaborn (Seabras USA, LLC)USPeer2,25469
AS22356Durand do Brasil LtdaBRPeer2,15096
AS52468UFINET PANAMA S.A.PAPeer1,52435
AS10429Vivo (Telefônica Brasil)BRPeer1,15188
AS35280F5 Networks SARLFRPeer7145
AS14537Continent 8 LLCUSPeer6514
AS22381SAMM (Megatelecom)BRPeer53066

Prefixes

All 345

The largest blocks AS28649 originates, widest first.

Largest prefixes originated by AS28649
PrefixAddressesVisibility
179.125.128.0/1732.8k76/76
177.131.64.0/198.2k76/76
186.249.128.0/198.2k76/76
200.236.224.0/198.2k76/76
177.131.64.0/204.1k21/76
177.131.80.0/204.1k21/76
179.125.128.0/204.1k21/76
179.125.144.0/204.1k21/76
179.125.160.0/204.1k21/76
179.125.176.0/204.1k21/76

Routing health

How AS28649'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%345
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more37.7%130
  • Partially propagated40% to 90%14.5%50
  • Seen by few peersUnder 40%47.8%165

Prefix sizes

IPv4 — 266 prefixes

IPv6 — 79 prefixes

  • /324.3B × /6411.4%9
  • /332.1B × /6415.2%12
  • /341.1B × /6410.1%8
  • /35537M × /6410.1%8
  • /36268M × /6420.3%16
  • /4865.5k × /6432.9%26

Recent changes

Announcements that started or stopped since 25th Sept 2026.

No announcement by AS28649 started or stopped in this period.

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