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ASN Lookup Tool
AS23503 CONSTELLATION-ENERGY

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS23503
Organisation
Exelon Corporation
Name
CONSTELLATION-ENERGY
Total IPv4 Addresses
4,352
Total IPv4 Prefixes
16
Total IPv6 Prefixes
1
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#15,319 out of 79,166
Registry
Arin
Registered Country
US flagUS
Registered Country Name
United States of America (the)
Registered Date
2002-03-29
Registration Last Change
2016-08-08
Receiving From
ASN
Organisation
AS3356
US flagLevel 3 Parent, LLC
AS26425
US flagExelon Corporation
AS1321
US flagVerizon Business
AS202
US flagLevel 3 Parent, LLC
Transit To
ASN
Organisation
AS26425
US flagExelon Corporation
IPv4 Active Prefixes
PrefixRange FromRange To
159.214.87.0/24159.214.87.0159.214.87.255
216.99.176.0/23216.99.176.0216.99.177.255
216.99.178.0/24216.99.178.0216.99.178.255
216.99.179.0/24216.99.179.0216.99.179.255
216.99.180.0/24216.99.180.0216.99.180.255
Showing 5 of 16
IPv6 Active Prefixes
PrefixRange FromRange To
2605:4ac0::/322605:4ac0::2605:4ac0:ffff:ffff:ffff:ffff:ffff:ffff