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ASN Lookup Tool
AS49 US-NATIONAL-INSTITUTE-OF-STANDARDS-AND-TECHNOLOG..

Powered By:
ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS49
Organisation
National Institute of Standards and Technology
Name
US-NATIONAL-INSTITUTE-OF-STANDARDS-AND-TECHNOLOG..
Total IPv4 Addresses
65,792
Total IPv4 Prefixes
21
Total IPv6 Prefixes
5
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#2,868 out of 77,675
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
1985-09-04
Registration Last Change
2024-09-11
Receiving From

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

ASN
Organisation
AS701
US flagVerizon Business
AS3356
US flagLevel 3 Parent, LLC
AS13335
US flagCloudflare, Inc.
AS3477
US flagNational Oceanic and Atmospheric Administration
IPv4 Active Prefixes

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

Prefix129.6.0.0/21
Range From129.6.0.0
Range To129.6.7.255
Prefix129.6.8.0/22
Range From129.6.8.0
Range To129.6.11.255
Prefix129.6.12.0/23
Range From129.6.12.0
Range To129.6.13.255
Prefix129.6.14.0/24
Range From129.6.14.0
Range To129.6.14.255
Prefix129.6.15.0/24
Range From129.6.15.0
Range To129.6.15.255
Showing 5 of 21
IPv6 Active Prefixes
Prefix2610:20:6000::/37
Range From2610:20:6000::
Range To2610:20:67ff:ffff:ffff:ffff:ffff:ffff
Prefix2610:20:6f15::/48
Range From2610:20:6f15::
Range To2610:20:6f15:ffff:ffff:ffff:ffff:ffff
Prefix2610:20:6f96::/48
Range From2610:20:6f96::
Range To2610:20:6f96:ffff:ffff:ffff:ffff:ffff
Prefix2610:20:6f97::/48
Range From2610:20:6f97::
Range To2610:20:6f97:ffff:ffff:ffff:ffff:ffff
Prefix2610:20:6fcf::/48
Range From2610:20:6fcf::
Range To2610:20:6fcf:ffff:ffff:ffff:ffff:ffff
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.