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AS numbers

AS21903 Arnhem Networks

AS21903 is operated by Arnhem Networks and registered with ARIN (US) since 2023-06-20.

It announces 1 IPv4 and 7 IPv6 prefixes, 100% of them RPKI valid.

RIPE RIS sees 6 upstream and peer networks and 0 downstream networks next to it.

PeeringDB lists it at 3 internet exchanges and 3 facilities. Its peering policy is open.

NameArnhem Networks
Registry handleARNHEM-01
Registry (RIR)ARIN
CountryUnited States (US)
Delegated on2023-06-20
Network typeGlobal
Peering policyOpen
IRR as-setARIN::AS21903:AS-DOWNSTREAMS
Prefixes (IPv4 / IPv6)1 / 7
RPKI valid100% (8 / 8)
Upstreams and peers6
Downstream networks0
Websitearnhemnetworks.com

Routing health

  • AS21903 announces 1 IPv4 and 7 IPv6 prefixes.
  • All 8 announced prefixes are RPKI valid.
  • 6 upstreams and peers, 0 downstream networks seen.

For every check with the fix (IRR route objects, the RPKI state of each route, reverse DNS and the registration), run the full network report.

Announced prefixes 8

  • 23.183.104.0/24
  • 2602:fa6d:60::/46
  • 2602:fa6d:64::/47
  • 2602:fa6d:70::/46
  • 2602:fa6d:78::/47
  • 2602:fa6d:80::/46
  • 2602:fa6d:200::/47
  • 2602:fa6d:abc::/48

Upstreams and peers 6

The networks RIPE RIS sees next to AS21903 in BGP paths, the most visible first.

Peering

Peering policy: Open. Suggested max-prefix limits: 2 IPv4, 10 IPv6. PeeringDB record

Internet exchanges 3
ExchangePortsSpeedRoute server
FCIX110GYes
FogIXP11GYes
FREMIX1100GYes
Facilities 3
FacilityCityCountry
Evocative DA4DallasUS
Evocative SEA1SeattleUS
Hurricane Electric Fremont 2FremontUS

More about AS21903

Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-14 07:26 UTC. The country is where the AS number was registered, not necessarily where the network operates.