subnet.im

AS133385Atom Myanmar Limited

Myanmar (Burma)RegistryAPNICTypeEyeball

As of 10th November 2026, AS133385 (Atom Myanmar Limited), an access network registered in Myanmar (Burma) with APNIC, originates 55 IPv4 prefixes covering 20.7k addresses and 20 IPv6 prefixes. By IPv4 address space that makes it the 7,010th-largest of the 80,733 networks we see originating IPv4, and the 3rd-largest of 131 in Myanmar (Burma). It is seen behind 21 upstream networks, most often AS174 (Cogent Communications, LLC) and AS4229 (Zenlayer Inc), and in front of 24 downstream networks. Every one of its announcements has 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

55

IPv6 prefixes

20

IPv4 addresses

20.7k

IPv6 /64s

554M

Upstream graph

The networks AS133385 is seen behind, one and two hops out, drawn from real AS paths.

AS133385Toward the internet core
Upstream graph for AS133385: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS133385Atom Myanmar Limi…This networkAS174Cogent Communicat…AS4229Zenlayer IncAS6939Hurricane Electri…AS16552Tiggee LLCAS35280F5 Networks SARLAS151326DCConnect Communi…AS6453TATA Communicatio…AS2914NTT America, Inc.AS20130Depaul UniversityAS132337AxclusiveAS1299Arelion (fka. Tel…AS32590Valve Corporation

Networks observed one and two hops upstream of AS133385 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

123

adjacent networks

Upstreams
2117%
Peers
7863%
Downstreams
2420%

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

Upstreams of AS133385
NetworkCountryRelationshipPathsVantage pts
AS174Cogent Communications, LLCUSPeer5,080104
AS4229Zenlayer IncUSPeer3,311112
AS6939Hurricane Electric LLCUSPeer58213
AS35280F5 Networks SARLFRPeer1134
AS32590Valve CorporationUSAdjacent692
AS24482SG.GSSGPeer692
AS58511Swoop (Anycast Global Backbone)AUPeer692
AS215859Hetzner Cloud - SingaporeDEAdjacent692
AS16552Tiggee LLCUSAdjacent692
AS49544i3D.net B.VNLPeer692

Prefixes

All 75

The largest blocks AS133385 originates, widest first.

Largest prefixes originated by AS133385
PrefixAddressesVisibility
37.111.0.0/212k76/76
37.111.8.0/212k76/76
37.111.40.0/221k76/76
37.111.48.0/221k76/76
45.120.84.0/221k76/76
103.255.172.0/221k76/76
37.111.0.0/2425675/76
37.111.1.0/2425676/76
37.111.2.0/2425676/76
37.111.3.0/2425676/76

Routing health

How AS133385'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

  • Valid100.0%75
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%75
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 55 prefixes

IPv6 — 20 prefixes

  • /36268M × /6410.0%2
  • /441M × /6480.0%16
  • /4865.5k × /6410.0%2

Recent changes

Announcements that started or stopped since 11th Oct 2026.

No announcement by AS133385 started or stopped in this period.

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