AS15211 Square, Inc.

SQUARE - Square, Inc. · registered in the United States

IPv4 addresses3,5845 prefixes · <0.001% of announced IPv4

Rank in United States#4,998largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#16,923of 79,396 networks with IPv4

IPv61 x /32 (65,553 x /48)3 prefixes

CountryUnited States18,679 ASNs registered there

Open AS15211 in ASN lookup Look up an IP in this network (74.122.185.1) All networks in United States

IPv4 prefixes

All 5 prefixes, in address order.

74.122.185.0/24
74.122.187.0/24
74.122.188.0/22
103.31.216.0/22
185.57.56.0/22

IPv6 prefixes

All 3 prefixes.

2001:df0:440::/48
2620:30::/44
2a02:5760::/32

Other ASNs named Square, Inc.

1 other network uses the same organisation name; together with AS15211 they announce 3,840 IPv4 addresses.

ASNNameIPv4 addresses

AS394628SQUARE-CORP - Square, Inc. US256

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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