ASN Lookup Tool

CONSTELLATION ENERGY GENERATION, LLC constellation.com US US 32 Routes

AS Data

AS10953

AS10953 – CONSTELLATION ENERGY GENERATION, LLC

AS Number 10953
AS Name CEG
Organization CONSTELLATION ENERGY GENERATION, LLC(ceg-74)
Country US
Website constellation.com
Number of IPv4 Routes 32
Number of IPv6 Routes 0
ASN type BUSINESS
Registry ARIN
Date Allocated 1998-02-10

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Use ASN data for AS10953 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route # IPs
159.214.197.0/24 256
159.214.192.0/24 256
159.214.210.0/24 256
159.214.214.0/24 256
159.214.202.0/24 256
159.214.215.0/24 256
159.214.219.0/24 256
159.214.223.0/24 256
159.214.196.0/24 256
159.214.198.0/24 256

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       10953
ASName:         CEG
ASHandle:       AS10953
RegDate:        1998-02-10
Updated:        2024-01-11    
Ref:            https://rdap.arin.net/registry/autnum/10953


OrgName:        CONSTELLATION ENERGY GENERATION, LLC
OrgId:          CEG-74
Address:        1310 Point Street
Address:        16th Floor
City:           Baltimore
StateProv:      MD
PostalCode:     21231
Country:        US
RegDate:        2023-08-17
Updated:        2023-09-19
Ref:            https://rdap.arin.net/registry/entity/CEG-74


OrgAbuseHandle: CEGNO-ARIN
OrgAbuseName:   CEG NOC
OrgAbusePhone:  +1-844-523-4486 
OrgAbuseEmail:  constellationtechops-eno/euco@constellation.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/CEGNO-ARIN

OrgTechHandle: CEGNO-ARIN
OrgTechName:   CEG NOC
OrgTechPhone:  +1-844-523-4486 
OrgTechEmail:  constellationtechops-eno/euco@constellation.com
OrgTechRef:    https://rdap.arin.net/registry/entity/CEGNO-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number Description Country
AS202 Level 3 Parent, LLC US
AS1321 Verizon Business US

Upstreams

AS Number Description Country
AS202 Level 3 Parent, LLC US
AS1321 Verizon Business US

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Frequently Asked Questions

ASN AS10953 is an Autonomous System Number used to identify a network for BGP internet routing.
AS10953 is listed under CONSTELLATION ENERGY GENERATION, LLC.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.