ResearchRouting table, RPKI, IRR & looking glass

AS7280 Yahoo Holdings Inc.

AS7280 (YAHOO-FC) is registered to Yahoo Holdings Inc. in US, through ARIN. It originates 18 prefixes in the global routing table.

9
IPv4 prefixes
9
IPv6 prefixes
2,304
IPv4 addresses
0%
RPKI valid

Who holds AS7280

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS7280
Handle
YAHOO-FC
Organization
Yahoo Holdings Inc.
Country
US
Registry
ARIN
ASPA
None published
WHOIS recordARIN
#
# 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:       7280
ASName:         YAHOO-FC
ASHandle:       AS7280
RegDate:        1996-11-01
Updated:        2019-05-01
Ref:            https://rdap.arin.net/registry/autnum/7280


OrgName:        Yahoo Holdings Inc.
OrgId:          OH-207
Address:        770 BROADWAY FL 9
City:           New York
StateProv:      NY
PostalCode:     10003-9558
Country:        US
RegDate:        2018-12-21
Updated:        2025-09-03
Ref:            https://rdap.arin.net/registry/entity/OH-207


OrgAbuseHandle: OATHA-ARIN
OrgAbuseName:   Oath Abuse
OrgAbusePhone:  +1-408-349-3300 
OrgAbuseEmail:  network-abuse@cc.yahoo-inc.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/OATHA-ARIN

OrgTechHandle: OTC2-ARIN
OrgTechName:   Oath Tech Contact
OrgTechPhone:  +1-408-349-5555 
OrgTechEmail:  rir-tech@oath.com
OrgTechRef:    https://rdap.arin.net/registry/entity/OTC2-ARIN

OrgNOCHandle: OATHN-ARIN
OrgNOCName:   Oath NOC
OrgNOCPhone:  +1-408-349-5555 
OrgNOCEmail:  rir-noc@yahooinc.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/OATHN-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.
#

What AS7280 announces

Prefixes originated by AS7280 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
9
IPv6 prefixes
9
IPv4 addresses
2,304 (9 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
18
ROAs naming AS7280
0
With an IRR route object
16 88%

Who AS7280 is reached through

The AS just before AS7280 in the paths our looking glass collectors hold, for 18 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.