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AS4557 Rice University

SOUTHEAST-TEXAS-GIGAPOP - Rice University · registered in the United States

IPv4 addresses4,0969 prefixes · <0.001% of announced IPv4
Rank in United States#4,558largest network in US by IPv4 space, of 18,338 · <0.01% of US
Rank worldwide#15,463of 79,396 networks with IPv4
IPv6255 x /4814 prefixes
CountryUnited States18,679 ASNs registered there
Open AS4557 in ASN lookup Look up an IP in this network (198.32.224.1) All networks in United States

IPv4 prefixes

All 9 prefixes, in address order.

  • 198.32.224.0/22
  • 198.32.228.0/23
  • 198.32.230.0/23
  • 198.32.232.0/23
  • 198.32.234.0/24
  • 198.32.235.0/24
  • 198.32.236.0/23
  • 198.32.238.0/24
  • 198.32.239.0/24

IPv6 prefixes

All 14 prefixes.

  • 2001:468:1a00::/45
  • 2001:468:1a09::/48
  • 2001:468:1a0a::/47
  • 2001:468:1a0c::/46
  • 2001:468:1a10::/44
  • 2001:468:1a20::/43
  • 2001:468:1a40::/42
  • 2001:468:1a80::/42
  • 2001:468:1ac0::/43
  • 2001:468:1ae0::/44
  • 2001:468:1af0::/47
  • 2001:468:1af2::/47
  • 2001:468:1af4::/46
  • 2001:468:1af8::/45

Other ASNs named Rice University

2 other networks use the same organisation name; together with AS4557 they announce 466,688 IPv4 addresses.

ASNNameIPv4 addresses
AS8RICE-AS - Rice University US462,336
AS1700RICE-AS1700 - Rice University US256

Similar-sized networks in United States

ASNNameIPv4 addresses
AS32575#4555 DIGICERT - DigiCert, Inc.4,096
AS33691#4556 HOU1-ENT-DC-VA1 - NEW CCH, LLC4,096
AS399827#4557 2PIFI - 2pifi, Inc4,096
AS13953#4559 SVCC-EDU - Sauk Valley Community College4,096
AS16970#4560 MIDNET - MIDnet4,096
AS25915#4561 WSWHE-NET - WASHINGTON SARATOGA WARREN HAMILTON & ESSEX BOCES4,096

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