// ASN
AS26101
YAHOO-BF1 - Yahoo Holdings Inc., US
Detailed information about the Autonomous System. Need another one? Look up a different ASN.
- ASN
- AS26101
- Organization
- Yahoo Holdings Inc.
- Description
- YAHOO-BF1 - Yahoo Holdings Inc., US
- Country
- US
- State / Region
- NY
- City
- New York
- Address
- 770 BROADWAY FL 9
- Registry (RIR)
- ARIN
- Created
- 2018-12-23
- Updated
- 2025-09-03
- IPv4 Prefixes
- 76
- IPv6 Prefixes
- 7
IPv4 Prefixes
76 total · showing first 10209.73.180.0/22 63.250.196.0/22 63.250.200.0/21 66.196.104.0/21 66.196.109.0/24 66.196.112.0/21 66.196.80.0/21 66.196.88.0/23 66.218.80.0/20 66.218.84.0/24
IPv6 Prefixes
7 total2001:4998:124::/46 2001:4998:124::/48 2001:4998:194::/46 2001:4998:194::/48 2001:4998:58::/46 2001:4998:58::/48 2001:4998:ef99::/48
What is AS26101?
AS26101 is an Autonomous System Number (ASN) assigned to Yahoo Holdings Inc.. An ASN identifies a network or group of IP prefixes operated under a common routing policy in the BGP protocol.
Looking for more ASN data?
Use our ASN Lookup Tool for real-time WHOIS queries, or explore our API documentation to integrate ASN data into your applications.