subnet.im

AS23347ZYC Network LLC

United StatesRegistryARINTypeContent

As of 27th September 2026, AS23347 (ZYC Network LLC), a content network registered in the United States with ARIN, originates 1 IPv4 prefix covering 256 addresses and 5 IPv6 prefixes. By IPv4 address space that makes it the 59,127th-largest of the 79,525 networks we see originating IPv4, and the 12,873rd-largest of 18,428 in the United States. It is seen behind 12 upstream networks, most often AS3204 (xTom OU) and AS17433 (Hytron Network Services Limited). 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

1

IPv6 prefixes

5

IPv4 addresses

256

IPv6 /64s

17.2M

Upstream graph

The networks AS23347 is seen behind, one and two hops out, drawn from real AS paths.

AS23347Toward the internet core
Upstream graph for AS23347: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS23347ZYC Network LLCThis networkAS3204xTom OUAS6939Hurricane Electri…AS7768Nuh Ahmet Firat t…AS17433Hytron Network Se…AS44324MoeDove LLCAS3214xTom GmbHAS9002RETN LimitedAS20130Depaul UniversityAS174Cogent Communicat…AS3491PCCW Global (HK) …AS140227Hong Kong Communi…AS216211CYBERVERSE LLC

Networks observed one and two hops upstream of AS23347 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

36

adjacent networks

Upstreams
1233%
Peers
2467%
Downstreams
00%

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

Upstreams of AS23347
NetworkCountryRelationshipPathsVantage pts
AS3204xTom OUEEPeer20456
AS17433Hytron Network Services LimitedHKPeer8181
AS44324MoeDove LLCUSPeer6464
AS6939Hurricane Electric LLCUSPeer2020
AS24940Hetzner Online GmbHDEPeer41
AS8888xTom Pty LtdAUPeer41
AS32590Valve CorporationUSPeer41
AS8298IPng Networks GmbHCHPeer41
AS25091IP-Max SACHPeer41
AS213151Christian ElsenDEPeer41

Prefixes

The largest blocks AS23347 originates, widest first.

Largest prefixes originated by AS23347
PrefixAddressesVisibility
23.156.153.0/2425681/81
2602:814:f000::/4016.8M × /6464/64
2602:814:f00c::/46262k × /6464/64
2602:814:f00a::/4865.5k × /6464/64
2602:814:f00c::/4865.5k × /6464/64
2602:f921::/4865.5k × /6464/64

Routing health

How AS23347'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%6
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%6
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 1 prefixes

IPv6 — 5 prefixes

  • /4016.8M × /6420.0%1
  • /46262k × /6420.0%1
  • /4865.5k × /6460.0%3

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Withdrawn2602:814:f008::/4825th Sept 2026
  • Announced2602:814:f008::/4822nd Sept 2026
  • Withdrawn2602:814:f008::/4821st Sept 2026
  • Withdrawn2602:814:f014::/4821st Sept 2026

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