AS207912 ASN-MS-DEVELOPMENT MARCIN SWIC trading as MS DEVELOPMENT

ASN-MS-DEVELOPMENT MARCIN SWIC trading as MS DEVELOPMENT · registered in Poland

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in Poland#1,986largest network in PL by IPv4 space, of 2,091 · <0.01% of PL

Rank worldwide#74,563of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryPoland2,145 ASNs registered there

Open AS207912 in ASN lookup Look up an IP in this network (45.10.137.1) All networks in Poland

IPv4 prefixes

All 1 prefix, in address order.

45.10.137.0/24

Similar-sized networks in Poland

ASNNameIPv4 addresses

AS207771#1983 CANPOL Canpol Sp. z o.o.256

AS207838#1984 ARMATIS-LC-PL Armatis LC Polska Sp.z.o.o.256

AS207844#1985 AS_VIKOM VIKOM SPOLKA Z OGRANICZONA ODPOWIEDZIALNOSCIA256

AS208020#1987 Immunity-AS Immunity Systems sp. z o.o.256

AS208100#1988 RPOWER R.Power S.A.256

AS208145#1989 TEL-NET-AS Krzysztof Frac trading as "TEL-NET"256

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