AS201042 SD1-Telecom SD1-Telecom SRL

SD1-Telecom SD1-Telecom SRL · registered in Belgium

IPv4 addresses1,7926 prefixes · <0.001% of announced IPv4

Rank in Belgium#91largest network in BE by IPv4 space, of 273 · 0.02% of BE

Rank worldwide#24,608of 79,396 networks with IPv4

IPv68 x /32 (524,288 x /48)1 prefixes

CountryBelgium294 ASNs registered there

Open AS201042 in ASN lookup Look up an IP in this network (81.2.148.1) All networks in Belgium

IPv4 prefixes

All 6 prefixes, in address order.

81.2.148.0/24
154.52.36.0/24
154.52.49.0/24
154.52.51.0/24
154.52.52.0/23
194.13.142.0/24

IPv6 prefixes

All 1 prefix.

2a13:4840::/29

Similar-sized networks in Belgium

ASNNameIPv4 addresses

AS56675#88 OAC O.A.C. bvba2,048

AS202830#89 AS_KBCGROUP_DCSK KBC GLOBAL SERVICES NV2,048

AS205233#90 AS_KBCGROUP_CSOBCZ KBC GLOBAL SERVICES NV2,048

AS209383#92 SECURITAS Securitas N.V.1,792

AS21489#93 SHAPE-AS The North Atlantic Treaty Organization1,792

AS35660#94 EASI-AS SA EASI1,792

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