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ASN Lookup Tool
AS12257 EMC-AS12257

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS12257
Organisation
Dell, Inc.
Name
EMC-AS12257
Total IPv4 Addresses
24,832
Total IPv4 Prefixes
96
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#5,658 out of 77,684
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
1999-05-03
Registration Last Change
2023-03-20
Receiving From

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

ASN
Organisation
AS7018
US flagAT&T Services, Inc.
AS701
US flagVerizon Business
AS3356
US flagLevel 3 Parent, LLC
AS12400
IL flagPartner Communications Ltd.
AS9498
IN flagBharti Airtel Limited
Showing 5 of 14
IPv4 Active Prefixes

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

Prefix12.7.200.0/24
Range From12.7.200.0
Range To12.7.200.255
Prefix128.221.192.0/24
Range From128.221.192.0
Range To128.221.192.255
Prefix128.221.204.0/24
Range From128.221.204.0
Range To128.221.204.255
Prefix128.221.208.0/24
Range From128.221.208.0
Range To128.221.208.255
Prefix128.221.209.0/24
Range From128.221.209.0
Range To128.221.209.255
Showing 5 of 96
IPv6 Active Prefixes
Prefix2620:145:400::/48
Range From2620:145:400::
Range To2620:145:400: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.