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ASN Lookup Tool
AS17421 EMOME-NET

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS17421
Organisation
Mobile Business Group Chunghwa Telecom Co., Ltd...
Name
EMOME-NET
Total IPv4 Addresses
1,633,792
Total IPv4 Prefixes
170
Total IPv6 Prefixes
85
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#243 out of 78,217
Registry
Apnic
Registered Country
TW flag TW
Registered Country Name
Taiwan (Province of China)
Registered Date
Registration Last Change
2021-11-04
Receiving From

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

ASN
Organisation
AS4766
KR flagKorea Telecom
AS3356
US flagLevel 3 Parent, LLC
AS2516
JP flagKDDI CORPORATION
AS3462
TW flagChunghwa Telecom Co., Ltd.
AS2914
US flagNTT America, Inc.
Showing 5 of 14
IPv4 Active Prefixes

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

Prefix42.70.0.0/18
Range From42.70.0.0
Range To42.70.63.255
Prefix42.70.64.0/18
Range From42.70.64.0
Range To42.70.127.255
Prefix42.70.128.0/18
Range From42.70.128.0
Range To42.70.191.255
Prefix42.70.192.0/18
Range From42.70.192.0
Range To42.70.255.255
Prefix42.71.0.0/18
Range From42.71.0.0
Range To42.71.63.255
Showing 5 of 170
IPv6 Active Prefixes
Prefix2001:b400::/33
Range From2001:b400::
Range To2001:b400:7fff:ffff:ffff:ffff:ffff:ffff
Prefix2001:b400:8000::/34
Range From2001:b400:8000::
Range To2001:b400:bfff:ffff:ffff:ffff:ffff:ffff
Prefix2001:b400:c000::/36
Range From2001:b400:c000::
Range To2001:b400:cfff:ffff:ffff:ffff:ffff:ffff
Prefix2001:b400:d000::/39
Range From2001:b400:d000::
Range To2001:b400:d1ff:ffff:ffff:ffff:ffff:ffff
Prefix2001:b400:d200::/45
Range From2001:b400:d200::
Range To2001:b400:d207:ffff:ffff:ffff:ffff:ffff
Showing 5 of 85
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.