subnet.im

AS28186ITS TELECOMUNICACOES LTDA

BrazilRegistryLACNICTypeEyeball

As of 27th September 2026, AS28186 (ITS TELECOMUNICACOES LTDA), an access network registered in Brazil with LACNIC, originates 124 IPv4 prefixes covering 205k addresses and 73 IPv6 prefixes. By IPv4 address space that makes it the 1,311th-largest of the 79,525 networks we see originating IPv4, and the 35th-largest of 7,983 in Brazil. It is seen behind 14 upstream networks, most often AS7738 (V.tal (fka Telemar)) and AS6939 (Hurricane Electric LLC), and in front of 76 downstream networks. 94% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 52% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

124

IPv6 prefixes

73

IPv4 addresses

205k

IPv6 /64s

15.1B

Upstream graph

The networks AS28186 is seen behind, one and two hops out, drawn from real AS paths.

AS28186Toward the internet core
Upstream graph for AS28186: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS28186ITS TELECOMUNICAC…This networkAS3356Lumen (Level 3)AS6939Hurricane Electri…AS7738V.tal (fka Telema…AS12956Telxius (Telefoni…AS52863UPX TECNOLOGIA LT…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS8167V.talAS32590Valve CorporationAS52320V.tal (GlobeNet)

Networks observed one and two hops upstream of AS28186 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

233

adjacent networks

Upstreams
146%
Peers
14361%
Downstreams
7633%

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

Upstreams of AS28186
NetworkCountryRelationshipPathsVantage pts
AS7738V.tal (fka Telemar)BRPeer12,035119
AS6939Hurricane Electric LLCUSPeer5,85670
AS3356Lumen (Level 3)USPeer4,208104
AS12956Telxius (Telefonica Global)ESPeer2,31184
AS52863UPX TECNOLOGIA LTDABRPeer1,81381
AS32590Valve CorporationUSPeer3152
AS14537Continent 8 LLCUSPeer3124
AS35280F5 Networks SARLFRPeer2644
AS1000LINK AMERICANUSPeer2482
AS266213PLANETCLICK TELECOMUNICACOES LTDABRPeer2392

Prefixes

All 197

The largest blocks AS28186 originates, widest first.

Largest prefixes originated by AS28186
PrefixAddressesVisibility
187.44.128.0/1732.8k81/81
187.44.128.0/1816.4k81/81
187.44.192.0/1816.4k81/81
189.89.128.0/1816.4k81/81
177.21.0.0/198.2k81/81
189.89.128.0/198.2k81/81
189.89.160.0/198.2k81/81
177.8.224.0/204.1k81/81
177.21.0.0/204.1k81/81
177.21.16.0/204.1k81/81

Routing health

How AS28186'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

  • Valid93.9%185
  • Invalid0.0%0
  • No ROA6.1%12

Propagation

  • Globally propagated90% of full-feed peers or more52.3%103
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%47.7%94

Prefix sizes

IPv4 — 124 prefixes

IPv6 — 73 prefixes

  • /324.3B × /642.7%2
  • /332.1B × /644.1%3
  • /4016.8M × /646.8%5
  • /441M × /642.7%2
  • /4865.5k × /6483.6%61

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Announced2804:204:2a0::/4822nd Sept 2026
  • Withdrawn2804:204:24a::/4821st Sept 2026
  • Withdrawn2804:204:367::/4821st Sept 2026
  • Withdrawn2804:24dc:201::/4821st Sept 2026

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