subnet.im

AS7738V.tal (fka Telemar)

BrazilRegistryLACNICTypeEyeball

As of 26th September 2026, AS7738 (V.tal (fka Telemar)), an access network registered in Brazil with LACNIC, originates 239 IPv4 prefixes covering 1.9M addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 288th-largest of the 79,516 networks we see originating IPv4, and the 10th-largest of 7,982 in Brazil. It is seen behind 8 upstream networks, most often AS52320 (V.tal (GlobeNet)) and AS8167 (V.tal), and in front of 142 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

239

IPv6 prefixes

2

IPv4 addresses

1.9M

IPv6 /64s

73B

Upstream graph

The networks AS7738 is seen behind, one and two hops out, drawn from real AS paths.

AS7738Toward the internet core
Upstream graph for AS7738: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS7738V.tal (fka Telema…This networkAS3356Lumen (Level 3)AS4230Claro (Embratel)AS8167V.talAS32590Valve CorporationAS52320V.tal (GlobeNet)AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS35280F5 Networks SARLAS1299Arelion (fka. Tel…AS6939Hurricane Electri…AS6461Zayo Bandwidth

Networks observed one and two hops upstream of AS7738 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

329

adjacent networks

Upstreams
82%
Peers
17954%
Downstreams
14243%

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

Upstreams of AS7738
NetworkCountryRelationshipPathsVantage pts
AS52320V.tal (GlobeNet)COPeer210,834143
AS8167V.talBRPeer12,59880
AS32590Valve CorporationUSPeer1,3562
AS4230Claro (Embratel)BRPeer4973
AS3356Lumen (Level 3)USPeer3675
AS10429Vivo (Telefônica Brasil)BRPeer111
AS16735Algar TelecomBRPeer31
AS271116Sim TelecomBRPeer22

Prefixes

All 241

The largest blocks AS7738 originates, widest first.

Largest prefixes originated by AS7738
PrefixAddressesVisibility
187.12.0.0/1665.5k81/81
187.76.0.0/1665.5k81/81
187.125.0.0/1665.5k81/81
189.80.0.0/1665.5k81/81
200.151.0.0/1665.5k81/81
200.164.0.0/1665.5k81/81
200.223.0.0/1665.5k81/81
200.195.0.0/1732.8k81/81
200.199.0.0/1732.8k81/81
152.239.0.0/1816.4k81/81

Routing health

How AS7738'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%241

Propagation

  • Globally propagated90% of full-feed peers or more100.0%241
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 239 prefixes

IPv6 — 2 prefixes

  • /2868.7B × /6450.0%1
  • /324.3B × /6450.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Withdrawn177.0.0.0/2126th Sept 2026
  • Announced177.0.0.0/2126th Sept 2026
  • Withdrawn177.0.16.0/2126th Sept 2026
  • Announced177.0.16.0/2126th Sept 2026
  • Withdrawn177.0.32.0/2126th Sept 2026
  • Announced177.0.32.0/2126th Sept 2026
  • Withdrawn177.0.40.0/2126th Sept 2026
  • Announced177.0.40.0/2126th Sept 2026
  • Announced177.0.48.0/2126th Sept 2026
  • Withdrawn177.0.48.0/2126th Sept 2026
  • Announced177.0.56.0/2126th Sept 2026
  • Withdrawn177.0.56.0/2126th Sept 2026

770 announced and 771 withdrawn in all; the most recent are shown.

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