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ASN Lookup Tool
AS30387 NIH-NET-NCCS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS30387
Organisation
National Institutes of Health
Name
NIH-NET-NCCS
Total IPv4 Addresses
3,328
Total IPv4 Prefixes
5
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#18,343 out of 79,100
Registry
Arin
Registered Country
US flagUS
Registered Country Name
United States of America (the)
Registered Date
2003-09-26
Registration Last Change
2012-03-02
Receiving From

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

ASN
Organisation
AS19050
US flagU.S. Department of Health & Human Services
AS10886
US flagUniversity of Maryland
IPv4 Active Prefixes

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

PrefixRange FromRange To
156.40.53.0/24156.40.53.0156.40.53.255
156.40.98.0/23156.40.98.0156.40.99.255
165.112.0.0/22165.112.0.0165.112.3.255
165.112.4.0/23165.112.4.0165.112.5.255
165.112.12.0/22165.112.12.0165.112.15.255
IPv6 Active Prefixes
PrefixRange FromRange To
2607:f220:402::/482607:f220:402::2607:f220:402:ffff:ffff:ffff:ffff:ffff