AS210712 GRAPESC-ISP ISP Alliance a.s.

GRAPESC-ISP ISP Alliance a.s. · registered in Czechia

IPv4 addresses14,3367 prefixes · <0.001% of announced IPv4

Rank in Czechia#47largest network in CZ by IPv4 space, of 570 · 0.17% of CZ

Rank worldwide#7,491of 79,396 networks with IPv4

IPv63 x /32 (258,048 x /48)6 prefixes

CountryCzechia599 ASNs registered there

Open AS210712 in ASN lookup Look up an IP in this network (91.192.32.1) All networks in Czechia

IPv4 prefixes

All 7 prefixes, in address order.

91.192.32.0/22
93.91.144.0/20
109.235.0.0/21
185.40.80.0/22
185.94.4.0/22
213.109.172.0/22
217.75.208.0/20

IPv6 prefixes

All 6 prefixes.

2a02:17a0::/33
2a02:17a0:8000::/34
2a02:17a0:c000::/36
2a02:17a0:e000::/35
2a02:17a1::/32
2a02:17a2::/31

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AS207700#49 Reliable-Communications Reliable Communications s.r.o.14,080

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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