AS210156 RSI-INFORMATIQUE REGIONAL SYSTEME INFORMATIQUE PAR ABREVIATION R.S.I. INFORMATIQUE

RSI-INFORMATIQUE REGIONAL SYSTEME INFORMATIQUE PAR ABREVIATION R.S.I. INFORMATIQUE · registered in France

IPv4 addresses7682 prefixes · <0.001% of announced IPv4

Rank in France#788largest network in FR by IPv4 space, of 1,375 · <0.01% of FR

Rank worldwide#42,579of 79,396 networks with IPv4

IPv62 x /32 (131,072 x /48)1 prefixes

CountryFrance1,474 ASNs registered there

Open AS210156 in ASN lookup Look up an IP in this network (185.37.156.1) All networks in France

IPv4 prefixes

All 2 prefixes, in address order.

185.37.156.0/23
185.37.158.0/24

IPv6 prefixes

All 1 prefix.

2a04:6650::/31

Similar-sized networks in France

ASNNameIPv4 addresses

AS213966#785 ADRESEAU ADReseau SAS768

AS215234#786 UBIZWAN UBIZWAN SAS768

AS206568#787 FR-ALTSYSNET ALTSYSNET.COM SAS768

AS209823#789 ENKI-AS Enki Multimedia EURL768

AS199568#790 DIRRA DIRRA SAS768

AS61168#791 PLANET-SERVICE Planet Service SARL768

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources