AS54187 EZE Castle Integration Inc.

ECINET2 - EZE Castle Integration Inc. · registered in the United States

IPv4 addresses1,0243 prefixes · <0.001% of announced IPv4

Rank in United States#7,793largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#30,446of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryUnited States18,679 ASNs registered there

Open AS54187 in ASN lookup Look up an IP in this network (103.21.28.1) All networks in United States

IPv4 prefixes

All 3 prefixes, in address order.

103.21.28.0/23
103.21.30.0/24
103.21.31.0/24

IPv6 prefixes

All 1 prefix.

2405:5500::/32

Other ASNs named EZE Castle Integration Inc.

1 other network uses the same organisation name; together with AS54187 they announce 24,064 IPv4 addresses.

ASNNameIPv4 addresses

AS14717ECINET - EZE Castle Integration Inc. US23,040

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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