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AS271273NET FORT Telecom

BrazilRegistryLACNIC

As of 11th November 2026, AS271273 (NET FORT Telecom), a network registered in Brazil with LACNIC, originates 4 IPv4 prefixes covering 1k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 36,499th-largest of the 80,743 networks we see originating IPv4, and the 5,769th-largest of 8,031 in Brazil. It is seen behind 2 upstream networks, most often AS267563 (Ei Telecom LTDA) and AS23106 (American Tower Brasil), and in front of 1 downstream network. 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

4

IPv6 prefixes

2

IPv4 addresses

1k

IPv6 /64s

4.3B

Upstream graph

The networks AS271273 is seen behind, one and two hops out, drawn from real AS paths.

AS271273Toward the internet core
Upstream graph for AS271273: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS271273NET FORT TelecomThis networkAS23106American Tower Br…AS267563Ei Telecom LTDAAS7195EdgeUnoAS52320V.tal (GlobeNet)AS28294GIGA MAIS FIBRA T…AS52468UFINET PANAMA S.A.

Networks observed one and two hops upstream of AS271273 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

6

adjacent networks

Upstreams
233%
Peers
350%
Downstreams
117%

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

Upstreams of AS271273
NetworkCountryRelationshipPathsVantage pts
AS267563Ei Telecom LTDABRPeer350137
AS23106American Tower BrasilBRPeer139139

Prefixes

The largest blocks AS271273 originates, widest first.

Largest prefixes originated by AS271273
PrefixAddressesVisibility
45.229.132.0/2425676/76
45.229.133.0/2425676/76
45.229.134.0/2425676/76
45.229.135.0/2425676/76
2804:78e8::/332.1B × /6461/63
2804:78e8:8000::/332.1B × /6461/63

Routing health

How AS271273'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%6

Propagation

  • Globally propagated90% of full-feed peers or more100.0%6
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 4 prefixes

IPv6 — 2 prefixes

  • /332.1B × /64100.0%2

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS271273 started or stopped in this period.

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