AS21559 OSNET

OSNET - OSNET · registered in Puerto Rico

IPv4 addresses31,48846 prefixes · 0.001% of announced IPv4

Rank in Puerto Rico#5largest network in PR by IPv4 space, of 96 · 4.16% of PR

Rank worldwide#4,925of 79,396 networks with IPv4

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

CountryPuerto Rico96 ASNs registered there

Open AS21559 in ASN lookup Look up an IP in this network (38.2.160.1) All networks in Puerto Rico

IPv4 prefixes

All 46 prefixes, in address order.

38.2.160.0/19
38.87.232.0/22
38.87.237.0/24
38.87.238.0/23
38.107.88.0/21
67.206.200.0/23
67.206.202.0/24
67.206.204.0/23
67.206.206.0/24
69.24.197.0/24
69.24.198.0/23
69.24.200.0/24
72.46.156.0/22
74.119.24.0/24
74.119.26.0/23
104.218.240.0/23
104.218.242.0/24
104.238.193.0/24
104.238.195.0/24
104.238.232.0/23
149.18.21.0/24
149.18.39.0/24
154.64.208.0/22
154.64.212.0/23
154.64.214.0/24
154.64.216.0/24
154.64.218.0/23
154.64.220.0/23
154.64.222.0/24
167.94.224.0/23
172.93.2.0/23
173.239.206.0/24
173.239.228.0/24
192.228.98.0/24
192.254.96.0/23
192.254.98.0/23
192.254.100.0/22
192.254.104.0/22
192.254.109.0/24
192.254.111.0/24
198.52.240.0/23
199.116.62.0/24
200.5.16.0/21
200.5.24.0/24
204.77.10.0/23
208.81.58.0/23

IPv6 prefixes

All 1 prefix.

2604:1cc0::/32

Other ASNs named OSNET

1 other network uses the same organisation name; together with AS21559 they announce 31,744 IPv4 addresses.

ASNNameIPv4 addresses

AS397598GONET - OSNET PR256

Similar-sized networks in Puerto Rico

ASNNameIPv4 addresses

AS11992#2 LIBERTY-MOB-PR - Liberty Mobile Puerto Rico Inc.104,704

AS16649#3 IUPR-AS - Interamerican University of Puerto Rico65,792

AS5786#4 UPRENET - University of Puerto Rico65,536

AS23114#6 CRITICALHUBNET - Critical Hub Networks26,368

AS11367#7 ICENET - WorldNet Telecommunications, LLC21,248

AS14979#8 AERONET-WIRELESS - Aeronet Wireless20,480

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