AS216335 Kalibr-SB-AS OOO Kalibr SB

Kalibr-SB-AS OOO Kalibr SB · registered in Russia

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in Russia#4,904largest network in RU by IPv4 space, of 4,937 · <0.01% of RU

Rank worldwide#76,207of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryRussia4,993 ASNs registered there

Open AS216335 in ASN lookup Look up an IP in this network (37.157.31.1) All networks in Russia

IPv4 prefixes

All 1 prefix, in address order.

37.157.31.0/24

Similar-sized networks in Russia

ASNNameIPv4 addresses

AS216236#4901 Novofon-AS NOVOFON-OS LLC256

AS216290#4902 TENDER-BANK Joint-Stock Commercial Bank "TENDER-BANK" (Joint-Stock Company)256

AS216317#4903 TRUBNAYASIV Trubnaya SIV LLC256

AS216377#4905 CTDL-MSK Citadel LLC256

AS216379#4906 CifraBeat Joint Stock Company "CifraBeat"256

AS216460#4907 POLYPLAST JSC Polyplast256

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