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ASN Lookup Tool
AS31816 NMDP

Powered By:
ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS31816
Organisation
National Marrow Donor Program
Name
NMDP
Total IPv4 Addresses
512
Total IPv4 Prefixes
2
Total IPv6 Prefixes
0
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#55,775 out of 77,675
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
2003-12-30
Registration Last Change
2012-03-02
Receiving From

The list of active Autonomous Systems (ASs) which send traffic to that ASN.

ASN
Organisation
AS19551
US flagIncapsula Inc
IPv4 Active Prefixes

This provides the list of IPv4 address space routes/prefixes currently announced on Border Gateway Protocol (BGP).

Prefix192.149.74.0/24
Range From192.149.74.0
Range To192.149.74.255
Prefix198.175.249.0/24
Range From198.175.249.0
Range To198.175.249.255
Autonomous System (AS) is a network (or collection of networks) that are all managed and supervised by a single entity or organisation. This tool provides a comprehensive ownership and connectivity report for any given AS number.