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AS38623Metfone (Viettel Cambodia)

CambodiaRegistryAPNICTypeEyeball

As of 10th November 2026, AS38623 (Metfone (Viettel Cambodia)), an access network registered in Cambodia with APNIC, originates 845 IPv4 prefixes covering 1.5M addresses and 17 IPv6 prefixes. By IPv4 address space that makes it the 358th-largest of the 80,723 networks we see originating IPv4, and the largest of 98 in Cambodia. It is seen behind 33 upstream networks, most often AS23673 (Cogetel Online, Cambodia, ISP) and AS7552 (Viettel Group), and in front of 69 downstream networks. 69% of its announcements have a valid RPKI ROA; 264 are RPKI-invalid. 66% of its routes reach at least 90% of full-feed peers, and 3 prefixes are also originated by another network.

At a glance

IPv4 prefixes

845

IPv6 prefixes

17

IPv4 addresses

1.5M

IPv6 /64s

8.3B

Upstream graph

The networks AS38623 is seen behind, one and two hops out, drawn from real AS paths.

AS38623Toward the internet core
Upstream graph for AS38623: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS38623Metfone (Viettel …This networkAS2914NTT America, Inc.AS6939Hurricane Electri…AS7552Viettel GroupAS9902NTC NeocomAS23673Cogetel Online, C…AS20130Depaul UniversityAS132337AxclusiveAS3491PCCW Global (HK) …AS1299Arelion (fka. Tel…AS58453China Mobile Inte…AS23764China Telecom Glo…AS55329Telcotech Ltd.

Networks observed one and two hops upstream of AS38623 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

177

adjacent networks

Upstreams
3319%
Peers
7542%
Downstreams
6939%

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

Upstreams of AS38623
NetworkCountryRelationshipPathsVantage pts
AS23673Cogetel Online, Cambodia, ISPKHAdjacent83,1191
AS7552Viettel GroupVNPeer8,41979
AS9902NTC NeocomKHPeer8,09675
AS6939Hurricane Electric LLCUSPeer4,88879
AS2914NTT America, Inc.USPeer3,00136
AS3491PCCW Global (HK) Ltd.HKPeer2,87343
AS24482SG.GSSGPeer2,70145
AS23764China Telecom GlobalHKPeer2,39082
AS9304HGC Global Communications LimitedHKPeer2,20770
AS58453China Mobile InternationalHKPeer1,57357

Prefixes

All 862

The largest blocks AS38623 originates, widest first.

Largest prefixes originated by AS38623
PrefixAddressesVisibility
36.37.128.0/1732.8k76/76
100.128.0.0/1732.8k1/76
100.136.0.0/1732.8k1/76
100.149.0.0/1732.8k1/76
100.149.128.0/1732.8k1/76
100.150.0.0/1732.8k1/76
100.150.128.0/1732.8k1/76
100.151.0.0/1732.8k1/76
100.153.0.0/1732.8k1/76
100.154.0.0/1732.8k1/76

Routing health

How AS38623'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

  • Valid69.4%598
  • Invalid30.6%264
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more66.4%572
  • Partially propagated40% to 90%0.1%1
  • Seen by few peersUnder 40%33.5%289

Prefix sizes

IPv4 — 845 prefixes

IPv6 — 17 prefixes

  • /324.3B × /645.9%1
  • /36268M × /6488.2%15
  • /4865.5k × /645.9%1

Recent changes

Announcements that started or stopped since 11th Oct 2026.

24 announced and 15 withdrawn in all; the most recent are shown.

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