AS30551 CLEVELAND-CLIFFS STEEL CORPORATION 🇺🇸 US

Announcing 2 prefixes, seen at the RIS collectors.

IPv4 prefixes

768 (3 × /24)

IPv6 prefixes

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

ASes reachable through it

Registry and operator data

AS number: AS30551
Name: CLEVELAND-CLIFFS STEEL CORPORATION
Organisation: CLEVELAND-CLIFFS STEEL CORPORATION
Country: 🇺🇸 US
RIR: ARIN
Allocated: 2003-11-04

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

0 valid (0.0%) 0 invalid (0.0%) 2 no ROA (100.0%)

Whois

Fetched from whois.arin.net

ASNumber:       30551
ASName:         ASC-163-ASN01
ASHandle:       AS30551
RegDate:        2003-11-04
Updated:        2012-03-02
Ref:            https://rdap.arin.net/registry/autnum/30551

OrgName:         CLEVELAND-CLIFFS STEEL CORPORATION
OrgId:          ASC-163
Address:        200 Public Square
Address:        IT Department
City:           Cleveland
StateProv:      OH
PostalCode:     44114
Country:        US
RegDate:        2002-12-17
Updated:        2026-05-05
Comment:        Company Website: www.clevelandcliffs.com
Ref:            https://rdap.arin.net/registry/entity/ASC-163

OrgNOCHandle: ABUSE9467-ARIN
OrgNOCName:   Abuse
OrgNOCPhone:  +1-216-694-5700
OrgNOCEmail:  arinadmin@clevelandcliffs.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/ABUSE9467-ARIN

OrgAbuseHandle: ABUSE9467-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-216-694-5700
OrgAbuseEmail:  arinadmin@clevelandcliffs.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE9467-ARIN

OrgTechHandle: ABUSE9467-ARIN
OrgTechName:   Abuse
OrgTechPhone:  +1-216-694-5700
OrgTechEmail:  arinadmin@clevelandcliffs.com
OrgTechRef:    https://rdap.arin.net/registry/entity/ABUSE9467-ARIN