Data as of Nov 14, 2026
199.20.16.0/21
2 residential-proxy exits · 30 daysAlabama Supercomputer Authority
Residential-proxy exits
Proxy exits
2
0.10% of its addresses · 30 days
Spread
2 of 8
/24s with at least one exit
Providers
20
selling exits here
Oct 15, 2026 – Nov 13, 2026
Exits seen per day
1.3K observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 199.20.19.0/24 | 0 | 1 | |
| 199.20.20.0/24 | 0 | 1 |
Proxy providers listing exits
- 2Captcha
- Ake.net
- BirdProxies
- ByteProxies
- Byteful
- CliProxy
- FloppyData
- GonzoProxy
- Infatica
- LightningProxies
- MangoProxy
- NodeMaven
- NodeProxy
- Proxiware
- Proxy-Seller
- ProxyEmpire
- ProxyHat
- Proxyma
- Shifter
- VitalExclusive
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 199.20.16.0/22 since Jun 2026 | AS3464 | Business | 1 | Alabama Supercomputer Authority | |
| 199.20.17.0/24 since Jun 2026 | AS3464 | Business | Alabama Supercomputer Authority | ||
| 199.20.18.0/24 since Jun 2026 | AS3464 | Business | Alabama Supercomputer Authority | ||
| 199.20.19.0/24 since Jun 2026 | AS3464 | Business | 1 | Alabama Supercomputer Authority | |
| 199.20.20.0/24 since Jun 2026 | AS3464 | Business | 1 | Alabama Supercomputer Authority | |
| 199.20.21.0/24 since Jun 2026 | AS3464 | Business | Alabama Supercomputer Authority | ||
| 199.20.22.0/24 since Jun 2026 | AS3464 | Business | Alabama Supercomputer Authority |
Network & registry
Announced by
Covering announcement 199.20.16.0/20
- Prefix
- 199.20.16.0/20
- Announced by
- AS3464 Alabama Supercomputer Authority
- Type
- Business
- Proxy exits
- 11
- RPKI
- RPKI valid
- Netname
- NETBLK-ASC-NET
- Registrant
- Alabama Supercomputer Authority
- RIR
- ARIN
Origin network
AS3464
US
- Name
- Alabama Supercomputer Authority
- Type
- Education
- Registered
- Mar 4, 1994
- Domain
- asc.edu
- Website
- www.asc.edu
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 199.20.16.0/20
199.20.16.0/20
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 199.20.16.0/20 | AS3464 | /24 | ARIN | RPKI valid |
Whois
Registration for this announcement
- Range
- 199.
20. 16. 0/ 20 - Netname
- NETBLK-ASC-NET
- Registrant
- Alabama Supercomputer Authority
- Organization
- Alabama Supercomputer Authority (ASC-Z)
- Org address
- 686 Discovery Dr., Huntsville, AL, 35806
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-199-20-16-0-1
- Parent
- NET-199-0-0-0-0
- Created
- Oct 11, 1993
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 11, 1993
- Status
- assigned
Report abuse
Abuse contact
- bgpadmin@
asc. edu - Name
- R
- Phone
- +1-256-971-7491
- Handle
- MD3-ORG-ARIN