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ASN Lookup Tool
AS7203 LEASEWEB-USA-SFO

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS7203
Organisation
Leaseweb USA, Inc.
Name
LEASEWEB-USA-SFO
Total IPv4 Addresses
185856
Total IPv4 Prefixes
153
Total IPv6 Prefixes
6
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#1,213 out of 76,372
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
1996-10-08
Registration Last Change
2022-03-31
Receiving From

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

ASN
Organisation
AS16265
NL flagLeaseWeb Network B.V.
AS174
US flagCogent Communications
AS2914
US flagNTT America, Inc.
AS3257
US flagGTT Communications Inc.
AS7545
AU flagTPG Internet Pty Ltd
Showing 5 of 11
IPv4 Active Prefixes

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

Prefix23.19.52.0/24
Range From23.19.52.0
Range To23.19.52.255
Prefix23.19.53.0/24
Range From23.19.53.0
Range To23.19.53.255
Prefix23.19.88.0/21
Range From23.19.88.0
Range To23.19.95.255
Prefix23.19.160.0/22
Range From23.19.160.0
Range To23.19.163.255
Prefix23.19.164.0/22
Range From23.19.164.0
Range To23.19.167.255
Showing 5 of 153
IPv6 Active Prefixes
Prefix2605:fe80::/32
Range From2605:fe80::
Range To2605:fe80:ffff:ffff:ffff:ffff:ffff:ffff
Prefix2607:f5b5::/48
Range From2607:f5b5::
Range To2607:f5b5:0:ffff:ffff:ffff:ffff:ffff
Prefix2607:f5b5:1::/48
Range From2607:f5b5:1::
Range To2607:f5b5:1:ffff:ffff:ffff:ffff:ffff
Prefix2607:f5b5:2::/48
Range From2607:f5b5:2::
Range To2607:f5b5:2:ffff:ffff:ffff:ffff:ffff
Prefix2607:f5b5:3::/48
Range From2607:f5b5:3::
Range To2607:f5b5:3:ffff:ffff:ffff:ffff:ffff
Showing 5 of 6
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.