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API Packages
IP Geolocation
Reverse Geocoding
Phone & Email Verification
Network Engineering
Free API
Tools
What is my IP?
IP Lookup
ASN Lookup
Network Lookup
Insights
Daily IP Geolocation Accuracy Report
ASN Rank by IPv4 space
Tor Exit Nodes
Bogon Routes
IPv4 Address Space Report
IPv6 Address Space Report
Resources
Getting Started
Support Articles
Blog
Sign In
Sign Up
ASN Lookup Tool
AS12303 ISZT-AS
Powered By:
ASN Extended Info API
&
BGP Active Prefixes API
Home
Asn Lookup
As12303
ASN DETAILS
MAP
JSON VIEW
ASN Details
ASN
AS12303
Organisation
Magyarorszagi Internet Szolgaltatok Tanacsa Tudo..
Name
ISZT-AS
Total IPv4 Addresses
2,048
Total IPv4 Prefixes
1
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#21,808 out of 79,014
Registry
Ripe
Registered Country
HU
Registered Country Name
Hungary
Registered Date
2005-06-14
Registration Last Change
2025-05-27
Receiving From
ASN
Organisation
AS6939
Hurricane Electric LLC
AS32590
Valve Corporation
AS49544
i3D.net B.V
AS62214
Rackforest Zrt.
IPv4 Active Prefixes
Prefix
Range From
Range To
5.28.0.0/21
5.28.0.0
5.28.7.255
IPv6 Active Prefixes
Prefix
Range From
Range To
2a00:e6a0::/32
2a00:e6a0::
2a00:e6a0:ffff:ffff:ffff:ffff:ffff:ffff
Look Up
Enter AS Number eg: AS714 or 714