AS399728 P Foundation

PFOUNDATION - P Foundation · registered in the United States

IPv4 addresses1,5363 prefixes · <0.001% of announced IPv4

Rank in United States#6,871largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#26,149of 79,396 networks with IPv4

IPv610 x /487 prefixes

CountryUnited States18,679 ASNs registered there

Open AS399728 in ASN lookup Look up an IP in this network (38.87.123.1) All networks in United States

IPv4 prefixes

All 3 prefixes, in address order.

38.87.123.0/24
38.146.216.0/24
172.98.48.0/22

IPv6 prefixes

All 7 prefixes.

2620:98:e000::/48
2620:98:e002::/47
2620:98:e005::/48
2620:98:e007::/48
2620:98:e008::/48
2620:98:e00a::/47
2620:98:e00c::/47

Similar-sized networks in United States

ASNNameIPv4 addresses

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AS50069#6870 MISAKA-ANYCAST Misaka Network, Inc.1,536

AS14778#6872 YAHOO - Yahoo Holdings Inc.1,536

AS142561#6873 XTDEF-LIMITED-AS-AP - XTDEF Limited1,536

AS400799#6874 PUFFERFISH-STUDIOS - Pufferfish Studios LLC1,536

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