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AS393937

Medical Card System, Inc.

AS393937 is Medical Card System, Inc. (medicalcardsystem.com). It announces 256 IPv4 addresses in 1 prefixes, and 0 IPv6 prefixes.

Puerto Rico· ARIN· allocated 2015-04-30· business

256
IPv4 addresses announced
1
IPv4 prefixes
0
IPv6 prefixes
0.00%
of its routes RPKI-valid
256
of its IPv4 geolocated
1
country

Where its space is

The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.

  1. Puerto Rico256 · 100.00%

Registry record

Its ASN Whois record, as the registry publishes it.

handle
MCS-PUBLIC-NET
name
Medical Card System, Inc.
org
MCS-305
org name
Medical Card System, Inc.
org address
255 Ponce De Leon Ave, San Juan, PR, 00917
org city
San Juan
org country
PR
country
PR
source
arin
created
2015-04-30
updated
2026-09-08
abuse name
Netadmins
abuse phone
+1-787-758-2500
abuse kind
role
abuse city
San Juan
abuse country
PR
admin name
Netadmins
admin phone
+1-787-758-2500
admin kind
role
admin city
San Juan
admin country
PR
tech name
Netadmins
tech phone
+1-787-758-2500
tech kind
role
tech city
San Juan
tech country
PR

What the databases see

Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.

IPv4 prefixes

Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.

1 prefixes
PREFIXCOUNTRYRPKIPEERSFIRST SEEN
192.107.111.0/24Puerto Riconot found172026-10-02
00 · Evaluate

Test the real build first.

An evaluation license puts a full current build in your hands — every row, every column, no sampling — so you can measure it against your own traffic before anyone talks about terms.

01 · License

Then license what you use.

Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell — priced by scope, not by seat.
Annual terms, a named contact, and flexible payment terms — monthly, quarterly or yearly.