AS23503 Exelon Corporation

CONSTELLATION-ENERGY - Exelon Corporation · registered in the United States

IPv4 addresses4,3525 prefixes · <0.001% of announced IPv4

Rank in United States#4,360largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#14,570of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryUnited States18,679 ASNs registered there

Open AS23503 in ASN lookup Look up an IP in this network (159.214.87.1) All networks in United States

IPv4 prefixes

All 5 prefixes, in address order.

159.214.87.0/24
216.99.176.0/21
216.99.184.0/22
216.99.188.0/23
216.99.190.0/23

IPv6 prefixes

All 1 prefix.

2605:4ac0::/32

Other ASNs named Exelon Corporation

1 other network uses the same organisation name; together with AS23503 they announce 33,280 IPv4 addresses.

ASNNameIPv4 addresses

AS26425EXELON-CORPORATION - Exelon Corporation US28,928

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IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources