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AS267121ATPlus Telecom

BrazilRegistryLACNIC

As of 11th November 2026, AS267121 (ATPlus Telecom), a network registered in Brazil with LACNIC, originates 24 IPv4 prefixes covering 8.7k addresses and 4 IPv6 prefixes. By IPv4 address space that makes it the 11,636th-largest of the 80,747 networks we see originating IPv4, and the 810th-largest of 8,032 in Brazil. It is seen behind 11 upstream networks, most often AS53062 (ACESSOLINE TELECOMUNICACOES LTDA) and AS3356 (Lumen (Level 3)), and in front of 9 downstream networks. 71% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

24

IPv6 prefixes

4

IPv4 addresses

8.7k

IPv6 /64s

4.3B

Upstream graph

The networks AS267121 is seen behind, one and two hops out, drawn from real AS paths.

AS267121Toward the internet core
Upstream graph for AS267121: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS267121ATPlus TelecomThis networkAS3356Lumen (Level 3)AS6939Hurricane Electri…AS33182HostDime.com, Inc.AS53062ACESSOLINE TELECO…AS263998SIM FIBRAAS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS20130Depaul UniversityAS132337AxclusiveAS15830Equinix, Inc.AS52320V.tal (GlobeNet)

Networks observed one and two hops upstream of AS267121 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

80

adjacent networks

Upstreams
1114%
Peers
6075%
Downstreams
911%

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

Upstreams of AS267121
NetworkCountryRelationshipPathsVantage pts
AS53062ACESSOLINE TELECOMUNICACOES LTDABRPeer1,556125
AS3356Lumen (Level 3)USPeer1,35073
AS6939Hurricane Electric LLCUSPeer18121
AS263998SIM FIBRABRPeer8576
AS33182HostDime.com, Inc.USPeer7676
AS14840BR.DIGITAL BRPeer6868
AS14537Continent 8 LLCUSPeer493
AS35280F5 Networks SARLFRPeer362
AS32590Valve CorporationUSPeer362
AS1000LINK AMERICANUSPeer31

Prefixes

All 28

The largest blocks AS267121 originates, widest first.

Largest prefixes originated by AS267121
PrefixAddressesVisibility
45.229.104.0/221k76/76
187.84.148.0/221k76/76
45.229.104.0/2351276/76
45.229.106.0/2351276/76
187.84.148.0/2351276/76
187.84.150.0/2351276/76
45.147.226.0/2425676/76
45.229.104.0/2425676/76
45.229.105.0/2425676/76
45.229.106.0/2425676/76

Routing health

How AS267121'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

  • Valid71.4%20
  • Invalid0.0%0
  • No ROA28.6%8

Propagation

  • Globally propagated90% of full-feed peers or more100.0%28
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 24 prefixes

IPv6 — 4 prefixes

  • /324.3B × /6425.0%1
  • /4016.8M × /6475.0%3

Recent changes

Announcements that started or stopped since 12th Oct 2026.

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