Free network tools
AS WHOIS
Look up an Autonomous System — holder, registry, contacts, announced IPv4/IPv6 prefixes, upstreams and downstreams.
Network Report (All-in-one) BGP Looking Glass BGP Security Check RPKI Validator BGP Hijack & Leak Monitor ASN Intelligence Internet Outages & Anomalies Country Internet Report Domain Insights IP WHOIS AS WHOIS
AS26425
EXELON-CORPORATION - Exelon Corporation Announcing routesAS nameEXELON-CORPORATION
OrganisationExelon Corporation
Registry (RIR)ARIN
HandleAS26425
RangeAS26425
Registered15 Sep 2002
Last changed08 Aug 2016
Abuse contact[email protected]
28IPv4 prefixes
0IPv6 prefixes
3Upstreams
1Downstreams
Upstreams
| AS | Network name | Visibility |
|---|---|---|
| AS202 | CENTURYLINK-LEGACY-LVLT-202 - Level 3 Parent, LLC | 187 |
| AS23503 | CONSTELLATION-ENERGY - Exelon Corporation | 151 |
| AS1321 | ANSBB-ASNNET-1 - Verizon Business | 116 |
Downstreams
| AS | Network name | Visibility |
|---|---|---|
| AS23503 | CONSTELLATION-ENERGY - Exelon Corporation | 151 |
IPv4 prefixes (28)
198.29.190.0/23198.29.182.0/24198.29.184.0/21198.29.192.0/19198.29.183.0/24198.29.160.0/20198.29.224.0/20198.29.128.0/19198.29.178.0/24198.29.179.0/24198.29.182.0/23198.29.184.0/24198.29.239.0/24198.29.232.0/22198.29.230.0/23198.29.253.0/24198.29.252.0/23198.29.177.0/24159.214.124.0/24198.29.176.0/22198.29.238.0/24198.29.175.0/24198.29.128.0/24198.29.199.0/24198.29.185.0/24198.29.236.0/23198.29.196.0/23198.29.194.0/23
RPKI-validate all prefixes of AS26425
Contacts
| Role | Name | Handle | Email / phone | Address |
|---|---|---|---|---|
| registrant | Exelon Corporation | EXELO | 10 S Dearborn St, Chicago, IL, 60603, United States | |
| administrative, technical, abuse, noc | Network Operations Center | NOC1756-ARIN | [email protected], +1-410-470-1200, +1-888-232-4800 | 523 E. Monument Street. , 6th Floor, Baltimore, MD, 21202, United States |
| abuse, technical | Network Operations Center | NOC1756-ARIN | [email protected], +1-410-470-1200, +1-888-232-4800 | 523 E. Monument Street. , 6th Floor, Baltimore, MD, 21202, United States |
Raw registry response
{
"endAutnum": 26425,
"entities": [
{
"entities": [
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-05-01T09:05:58-04:00"
},
{
"eventAction": "registration",
"eventDate": "2005-03-07T14:15:19-05:00"
}
],
"handle": "NOC1756-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NOC1756-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/26425"
},
{
"href": "https://whois.arin.net/rest/poc/NOC1756-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/26425"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"administrative",
"technical",
"abuse",
"noc"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "523 E. Monument Street.\r\n6th Floor\nBaltimore\nMD\n21202\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Network Operations Center"
],
[
"org",
[],
"text",
"Exelon Corporation"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-410-470-1200"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-888-232-4800"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2019-02-26T20:28:10-05:00"
},
{
"eventAction": "registration",
"eventDate": "2002-09-12T14:45:19-04:00"
}
],
"handle": "EXELO",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/EXELO",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/26425"
},
{
"href": "https://whois.arin.net/rest/org/EXELO",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/26425"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"registrant"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"fn",
[],
"text",
"Exelon Corporation"
],
[
"adr",
{
"label": "10 S Dearborn St\nChicago\nIL\n60603\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"kind",
[],
"text",
"org"
]
]
]
},
{
"events": [
{
"eventAction": "last changed",
"eventDate": "2026-05-01T09:05:58-04:00"
},
{
"eventAction": "registration",
"eventDate": "2005-03-07T14:15:19-05:00"
}
],
"handle": "NOC1756-ARIN",
"links": [
{
"href": "https://rdap.arin.net/registry/entity/NOC1756-ARIN",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/26425"
},
{
"href": "https://whois.arin.net/rest/poc/NOC1756-ARIN",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/26425"
}
],
"objectClassName": "entity",
"port43": "whois.arin.net",
"roles": [
"abuse",
"technical"
],
"status": [
"validated"
],
"vcardArray": [
"vcard",
[
[
"version",
[],
"text",
"4.0"
],
[
"adr",
{
"label": "523 E. Monument Street.\r\n6th Floor\nBaltimore\nMD\n21202\nUnited States"
},
"text",
[
"",
"",
"",
"",
"",
"",
""
]
],
[
"fn",
[],
"text",
"Network Operations Center"
],
[
"org",
[],
"text",
"Exelon Corporation"
],
[
"kind",
[],
"text",
"group"
],
[
"email",
[],
"text",
"[email protected]"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-410-470-1200"
],
[
"tel",
{
"type": [
"work",
"voice"
]
},
"text",
"+1-888-232-4800"
]
]
]
}
],
"events": [
{
"eventAction": "last changed",
"eventDate": "2016-08-08T10:45:57-04:00"
},
{
"eventAction": "registration",
"eventDate": "2002-09-15T13:11:31-04:00"
}
],
"handle": "AS26425",
"links": [
{
"href": "https://rdap.arin.net/registry/autnum/26425",
"rel": "self",
"type": "application/rdap+json",
"value": "https://rdap.arin.net/registry/autnum/26425"
},
{
"href": "https://whois.arin.net/rest/asn/AS26425",
"rel": "alternate",
"type": "application/xml",
"value": "https://rdap.arin.net/registry/autnum/26425"
}
],
"name": "EXELON-CORPORATION",
"notices": [
{
"description": [
"By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use"
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/tou/",
"rel": "terms-of-service",
"type": "text/html",
"value": "https://rdap.arin.net/registry/autnum/26425"
}
],
"title": "Terms of Service"
},
{
"description": [
"If you see inaccuracies in the results, please visit: "
],
"links": [
{
"href": "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/",
"rel": "inaccuracy-report",
"type": "text/html",
"value": "https://rdap.arin.net/registry/autnum/26425"
}
],
"title": "Whois Inaccuracy Reporting"
},
{
"description": [
"Copyright 1997-2026, American Registry for Internet Numbers, Ltd."
],
"title": "Copyright Notice"
}
],
"objectClassName": "autnum",
"port43": "whois.arin.net",
"rdapConformance": [
"nro_rdap_profile_0",
"rdap_level_0",
"nro_rdap_profile_asn_flat_0"
],
"startAutnum": 26425,
"status": [
"active"
]
}Results come from public internet registries and live global routing data. Results are cached for up to an hour. Lookups are logged with your IP address to prevent abuse — see our Privacy Policy.
