AS25829 Smithsonian Institution

SMITHSONIAN - Smithsonian Institution · registered in the United States

IPv4 addresses62,46411 prefixes · 0.002% of announced IPv4

Rank in United States#1,375largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#3,591of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryUnited States18,679 ASNs registered there

Open AS25829 in ASN lookup Look up an IP in this network (38.127.143.1) All networks in United States

IPv4 prefixes

All 11 prefixes, in address order.

38.127.143.0/24
160.111.0.0/17
160.111.128.0/22
160.111.136.0/21
160.111.144.0/20
160.111.160.0/19
160.111.192.0/19
160.111.224.0/22
160.111.228.0/23
160.111.231.0/24
160.111.240.0/20

IPv6 prefixes

All 1 prefix.

2001:550:7708::/48

Similar-sized networks in United States

ASNNameIPv4 addresses

AS7106#1372 INDEPENDENTSFIBERNETWORK - Com Net, Inc.62,720

AS3481#1373 STOFCT-DOIT - State of Connecticut62,720

AS36086#1374 TELX-LEGACY - Telx62,464

AS33#1376 HPINC - HP Inc.62,464

AS10968#1377 CARGILL-NET - Cargill Incorporated62,464

AS32229#1378 JSUMS-ARIN - Jackson State University62,208

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