Autonomous System
AS26101 Yahoo Holdings Inc.
BusinessActiveUnited StatesARIN
AS26101 (YAHOO-BF1) is a business network operated by Yahoo Holdings Inc. in United States, registered with ARIN. It has 76 IPv4 prefixes with 137,984 addresses and 7 IPv6 prefixes, which makes it the 1,724th largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses137,984in 76 prefixes
IPv6 prefixes7≈ 1.9 × 10²⁵ addresses
Size rank#1,724of 82,200 active ASNs
Details
OrganizationYahoo Holdings Inc.
AS nameYAHOO-BF1
Websiteyahooinc.com
Country United States (US)
Network typeBusiness
RegistryARIN
Abuse contactrir-abuse@yahoo-inc.com
Registered2002-07-05
Last updated2020-07-21
IPv4 prefixes
76 prefixes · 137,984 addresses| Network | Addresses | First – last address |
|---|---|---|
| 98.139.128.0/17 | 32,768 | 98.139.128.0 – 98.139.255.255 |
| 67.195.192.0/19 | 8,192 | 67.195.192.0 – 67.195.223.255 |
| 72.30.0.0/19 | 8,192 | 72.30.0.0 – 72.30.31.255 |
| 72.30.32.0/19 | 8,192 | 72.30.32.0 – 72.30.63.255 |
| 74.6.96.0/19 | 8,192 | 74.6.96.0 – 74.6.127.255 |
| 66.218.80.0/20 | 4,096 | 66.218.80.0 – 66.218.95.255 |
| 67.195.176.0/20 | 4,096 | 67.195.176.0 – 67.195.191.255 |
| 69.147.112.0/20 | 4,096 | 69.147.112.0 – 69.147.127.255 |
| 72.30.192.0/20 | 4,096 | 72.30.192.0 – 72.30.207.255 |
| 98.139.32.0/20 | 4,096 | 98.139.32.0 – 98.139.47.255 |
| 63.250.200.0/21 | 2,048 | 63.250.200.0 – 63.250.207.255 |
| 66.196.80.0/21 | 2,048 | 66.196.80.0 – 66.196.87.255 |
| 66.196.104.0/21 | 2,048 | 66.196.104.0 – 66.196.111.255 |
| 66.196.112.0/21 | 2,048 | 66.196.112.0 – 66.196.119.255 |
| 68.142.216.0/21 | 2,048 | 68.142.216.0 – 68.142.223.255 |
| 68.142.224.0/21 | 2,048 | 68.142.224.0 – 68.142.231.255 |
| 69.147.72.0/21 | 2,048 | 69.147.72.0 – 69.147.79.255 |
| 69.147.120.0/21 | 2,048 | 69.147.120.0 – 69.147.127.255 |
| 74.6.128.0/21 | 2,048 | 74.6.128.0 – 74.6.135.255 |
| 74.6.248.0/21 | 2,048 | 74.6.248.0 – 74.6.255.255 |
| 98.137.192.0/21 | 2,048 | 98.137.192.0 – 98.137.199.255 |
| 98.139.16.0/21 | 2,048 | 98.139.16.0 – 98.139.23.255 |
| 98.139.24.0/21 | 2,048 | 98.139.24.0 – 98.139.31.255 |
| 63.250.196.0/22 | 1,024 | 63.250.196.0 – 63.250.199.255 |
| 67.195.204.0/22 | 1,024 | 67.195.204.0 – 67.195.207.255 |
98.139.128.0/17 67.195.192.0/19 72.30.0.0/19 72.30.32.0/19 74.6.96.0/19 66.218.80.0/20 67.195.176.0/20 69.147.112.0/20 72.30.192.0/20 98.139.32.0/20 63.250.200.0/21 66.196.80.0/21 66.196.104.0/21 66.196.112.0/21 68.142.216.0/21 68.142.224.0/21 69.147.72.0/21 69.147.120.0/21 74.6.128.0/21 74.6.248.0/21 98.137.192.0/21 98.139.16.0/21 98.139.24.0/21 63.250.196.0/22 67.195.204.0/22
The 25 largest of 76. The API and the database have all of them.
IPv6 prefixes
7 prefixes- 2001:4998:58::/46
- 2001:4998:124::/46
- 2001:4998:194::/46
- 2001:4998:58::/48
- 2001:4998:124::/48
- 2001:4998:194::/48
- 2001:4998:ef99::/48
2001:4998:58::/46 2001:4998:124::/46 2001:4998:194::/46 2001:4998:58::/48 2001:4998:124::/48 2001:4998:194::/48 2001:4998:ef99::/48
Query AS26101 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS26101&key=YOUR_API_KEY"Any address in its prefixes resolves to AS26101, with or without a key:
curl "https://api.ipapi.is/?q=98.139.128.1"Other networks of Yahoo Holdings Inc.
AS36647 Yahoo Holdings Inc.200,960 IPv4 addressesAS10310 Yahoo Holdings Inc.109,312 IPv4 addressesAS36646 Yahoo Holdings Inc.100,864 IPv4 addresses
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