AS21774 The Exchange Global Server Center

GSCNET - The Exchange Global Server Center · registered in Canada

IPv4 addresses6,6569 prefixes · <0.001% of announced IPv4

Rank in Canada#344largest network in CA by IPv4 space, of 1,575 · 0.01% of CA

Rank worldwide#11,859of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryCanada1,622 ASNs registered there

Open AS21774 in ASN lookup Look up an IP in this network (159.18.151.1) All networks in Canada

IPv4 prefixes

All 9 prefixes, in address order.

159.18.151.0/24
159.18.178.0/24
173.195.99.0/24
206.45.45.0/24
206.45.46.0/24
206.45.214.0/23
206.45.218.0/23
209.112.60.0/24
209.177.96.0/20

Similar-sized networks in Canada

ASNNameIPv4 addresses

AS13845#341 ESTRUXTURE-AB-13845 - eStruxture Data Centers Inc.6,656

AS16438#342 SATLCMINT01 - Satelcom Internet Inc.6,656

AS21564#343 NS-PROVINCIAL - Nova Scotia Provincial Government6,656

AS40440#345 NRTC-CA - NRTC Communications6,656

AS62164#346 HEYMMAN-2 Heymman Servers Corporation6,656

AS397735#347 NETWIRE-INC - Netwire inc6,400

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