subnet.im

AS29838Atlantic Metro Communications II, Inc.

United StatesRegistryARINTypeCarrier

As of 26th September 2026, AS29838 (Atlantic Metro Communications II, Inc.), a transit carrier registered in the United States with ARIN, originates 118 IPv4 prefixes covering 208k addresses and 19 IPv6 prefixes. By IPv4 address space that makes it the 1,290th-largest of the 79,516 networks we see originating IPv4, and the 362nd-largest of 18,424 in the United States. It is seen behind 55 upstream networks, most often AS1299 (Arelion (fka. Telia Carrier)) and AS2914 (NTT America, Inc.), and in front of 253 downstream networks. 5% 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

118

IPv6 prefixes

19

IPv4 addresses

208k

IPv6 /64s

9.3B

Upstream graph

The networks AS29838 is seen behind, one and two hops out, drawn from real AS paths.

AS29838Toward the internet core
Upstream graph for AS29838: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS29838Atlantic Metro Co…This networkAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS6939Hurricane Electri…AS25091IP-Max SAAS40633LOS ANGELES INTER…AS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS3130RGnet OUAS49544i3D.net B.VAS8298IPng Networks GmbHAS56662Marcin GondekAS4775Globe Telecoms

Networks observed one and two hops upstream of AS29838 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

609

adjacent networks

Upstreams
559%
Peers
30149%
Downstreams
25342%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 55.

Upstreams of AS29838
NetworkCountryRelationshipPathsVantage pts
AS1299Arelion (fka. Telia Carrier)SEPeer4,660118
AS2914NTT America, Inc.USPeer3,69298
AS40633LOS ANGELES INTERNET EXCHANGEUSPeer2,1371
AS25091IP-Max SACHPeer1,2144
AS6939Hurricane Electric LLCUSPeer62518
AS9002RETN LimitedGBPeer54611
AS6667Elisa OyjFIPeer5444
AS13030Init7 (Switzerland) Ltd.CHPeer5435
AS14537Continent 8 LLCUSPeer4714
AS38880Micron21 Datacentre Pty LtdAUPeer4652

Prefixes

All 137

The largest blocks AS29838 originates, widest first.

Largest prefixes originated by AS29838
PrefixAddressesVisibility
205.251.0.0/1732.8k81/81
67.208.64.0/198.2k81/81
69.169.64.0/198.2k81/81
70.33.160.0/198.2k81/81
108.60.128.0/198.2k80/81
204.145.64.0/198.2k80/81
205.251.32.0/198.2k81/81
66.178.176.0/204.1k81/81
66.231.176.0/204.1k80/81
69.9.32.0/204.1k80/81

Routing health

How AS29838'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

  • Valid5.1%7
  • Invalid0.0%0
  • No ROA94.9%130

Propagation

  • Globally propagated90% of full-feed peers or more100.0%137
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 118 prefixes

IPv6 — 19 prefixes

  • /324.3B × /6410.5%2
  • /36268M × /6410.5%2
  • /4016.8M × /6468.4%13
  • /4865.5k × /6410.5%2

Recent changes

Announcements that started or stopped since 27th Aug 2026.

No announcement by AS29838 started or stopped in this period.

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