AS401866 Master IT Support

MITSUPP - Master IT Support · registered in Puerto Rico

IPv4 addresses7682 prefixes · <0.001% of announced IPv4

Rank in Puerto Rico#47largest network in PR by IPv4 space, of 96 · 0.10% of PR

Rank worldwide#43,367of 79,396 networks with IPv4

IPv62 x /482 prefixes

CountryPuerto Rico96 ASNs registered there

Open AS401866 in ASN lookup Look up an IP in this network (23.143.4.1) All networks in Puerto Rico

IPv4 prefixes

All 2 prefixes, in address order.

23.143.4.0/24
64.93.68.0/23

IPv6 prefixes

All 2 prefixes.

2604:19a0:1::/48
2604:19a0:3::/48

Similar-sized networks in Puerto Rico

ASNNameIPv4 addresses

AS394743#44 GIGIFIBER - Gigifi768

AS397920#45 EDD-01 - Everyday Data, Inc.768

AS12206#46 DNPNE - DNP Networks768

AS14974#48 VIRTUAL-INC - Virtual Inc.768

AS15261#49 ZT - Zellius Telecommunications Inc.768

AS30294#50 FAMILYNETPR - Familynet Inc.768

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