Autonomous System
AS16 Lawrence Berkeley National Laboratory
GovernmentActiveUnited StatesARIN
AS16 (LBL) is a government network operated by Lawrence Berkeley National Laboratory in United States, registered with ARIN. It has 2 IPv4 prefixes with 131,072 addresses and 1 IPv6 prefix, which makes it the 1,903rd largest of 82,200 active autonomous systems by IPv4 space.
IPv4 addresses131,072in 2 prefixes
IPv6 prefixes1≈ 1.2 × 10²⁴ addresses
Size rank#1,903of 82,200 active ASNs
Details
OrganizationLawrence Berkeley National Laboratory
AS nameLBL
Websitelbl.gov
Country United States (US)
Network typeGovernment
RegistryARIN
Abuse contactsecurity@lbl.gov
Registered—
Last updated2024-12-30
IPv4 prefixes
2 prefixes · 131,072 addresses| Network | Addresses | First – last address |
|---|---|---|
| 128.3.0.0/16 | 65,536 | 128.3.0.0 – 128.3.255.255 |
| 131.243.0.0/16 | 65,536 | 131.243.0.0 – 131.243.255.255 |
128.3.0.0/16 131.243.0.0/16
IPv6 prefixes
1 prefix- 2620:83:8000::/48
2620:83:8000::/48
Query AS16 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=AS16&key=YOUR_API_KEY"Any address in its prefixes resolves to AS16, with or without a key:
curl "https://api.ipapi.is/?q=128.3.0.1"Largest networks in United States
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