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AS numbers

AS23138 First Step Internet

AS23138 is operated by First Step Internet and registered with ARIN (US) since 2002-01-30.

It announces 32 IPv4 and 3 IPv6 prefixes.

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

PeeringDB lists it as a Cable/DSL/ISP network at 1 internet exchange. Its peering policy is open.

NameFirst Step Internet
Registry handleFIRST-STEP
Registry (RIR)ARIN
CountryUnited States (US)
Delegated on2002-01-30
Network typeCable/DSL/ISP, Regional
Peering policyOpen
IRR as-setAS-FSR
Prefixes (IPv4 / IPv6)32 / 3
Upstreams and peers0
Downstream networks0
Websitefsr.com

Routing health

  • Partial result: RIPEstat did not return the neighbours, roas in time.
  • AS23138 announces 32 IPv4 and 3 IPv6 prefixes.

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 35

  • 64.126.128.0/18
  • 64.126.128.0/21
  • 64.126.131.0/24
  • 64.126.132.0/22
  • 64.126.136.0/24
  • 64.126.138.0/24
  • 64.126.140.0/24
  • 64.126.141.0/24
  • 64.126.143.0/24
  • 64.126.148.0/24
  • 64.126.149.0/24
  • 64.126.152.0/21
  • 64.126.160.0/23
  • 64.126.162.0/24
  • 64.126.165.0/24
  • 64.126.166.0/24
  • 64.126.169.0/24
  • 64.126.170.0/23
  • 64.126.172.0/23
  • 64.126.174.0/23
  • 64.126.180.0/23
  • 64.126.182.0/23
  • 64.126.184.0/24
  • 64.126.186.0/24
  • 64.126.188.0/24
  • 64.126.190.0/24
  • 198.206.162.0/24
  • 199.245.242.0/24
  • 204.52.245.0/24
  • 204.52.246.0/23
  • 204.52.246.0/24
  • 204.52.247.0/24
  • 2604:2a00:8000::/33
  • 2604:2a00::/32
  • 2604:2a00::/33

Peering

Peering policy: Open. Suggested max-prefix limits: 60 IPv4, 10 IPv6. PeeringDB record

Internet exchanges 1
ExchangePortsSpeedRoute server
SIX Seattle: MTU 1500220GYes

More about AS23138

Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-15 09:48 UTC. The country is where the AS number was registered, not necessarily where the network operates.