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AS267121ATPlus Telecom

BrazilRegistryLACNIC

As of 27th September 2026, AS267121 (ATPlus Telecom), a network registered in Brazil with LACNIC, originates 22 IPv4 prefixes covering 8.2k addresses and 4 IPv6 prefixes. By IPv4 address space that makes it the 11,866th-largest of the 79,525 networks we see originating IPv4, and the 836th-largest of 7,983 in Brazil. It is seen behind 13 upstream networks, most often AS53062 (ACESSOLINE TELECOMUNICACOES LTDA) and AS3356 (Lumen (Level 3)), and in front of 8 downstream networks. 69% 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

22

IPv6 prefixes

4

IPv4 addresses

8.2k

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)AS14840BR.DIGITALAS33182HostDime.com, Inc.AS53062ACESSOLINE TELECO…AS263998SIM FIBRAAS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS174Cogent Communicat…AS15830Equinix, Inc.AS52320V.tal (GlobeNet)AS268624Gamers Club Ltda

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

81

adjacent networks

Upstreams
1316%
Peers
6074%
Downstreams
810%

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

Upstreams of AS267121
NetworkCountryRelationshipPathsVantage pts
AS53062ACESSOLINE TELECOMUNICACOES LTDABRPeer1,537144
AS3356Lumen (Level 3)USPeer1,45065
AS263998SIM FIBRABRPeer8477
AS33182HostDime.com, Inc.USPeer8181
AS14840BR.DIGITAL BRPeer7272
AS6939Hurricane Electric LLCUSPeer6718
AS14537Continent 8 LLCUSPeer333
AS32590Valve CorporationUSPeer242
AS35280F5 Networks SARLFRPeer212
AS132337AxclusiveSGPeer191

Prefixes

All 26

The largest blocks AS267121 originates, widest first.

Largest prefixes originated by AS267121
PrefixAddressesVisibility
45.229.104.0/221k81/81
187.84.148.0/221k81/81
45.229.104.0/2351281/81
45.229.106.0/2351281/81
187.84.148.0/2351281/81
187.84.150.0/2351281/81
45.147.226.0/2425681/81
45.229.104.0/2425681/81
45.229.105.0/2425681/81
45.229.106.0/2425681/81

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

  • Valid69.2%18
  • Invalid0.0%0
  • No ROA30.8%8

Propagation

  • Globally propagated90% of full-feed peers or more100.0%26
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 22 prefixes

IPv6 — 4 prefixes

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

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Withdrawn2804:4870:7000::/3824th Sept 2026
  • Withdrawn50.114.180.0/2421st Sept 2026

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