Data as of Nov 8, 2026
66.21.19.0/24
1 residential-proxy exit · 30 daysAT&T Enterprises, LLC
Residential-proxy exits
Proxy exits
1
0.39% of its addresses · 30 days
Providers
2
selling exits here
Oct 9, 2026 – Nov 7, 2026
Exits seen per day
8 observations
Proxy providers listing exits
- AnyIP
- FloppyData
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 66.20.0.0/15 | 131,072 | BELLSNET-BLK8 | AT&T Enterprises, LLC (AEL-360) · US | Direct Allocation | Sep 14, 2000 | abuse@ |
| └ 66.21.19.0/29 | 8 | L-AND-S-63-19-0 | unknown | — | — | — |
| └ 66.21.19.8/29 | 8 | ACC-SELE75-19-8 | unknown | — | — | — |
| └ 66.21.19.16/29 | 8 | PGA-TOUR83-19-16 | unknown | — | — | — |
| └ 66.21.19.24/29 | 8 | METTEL-P71-19-24 | unknown | — | — | — |
| └ 66.21.19.32/29 | 8 | CORPORAT55-19-32 | unknown | — | — | — |
| └ 66.21.19.40/29 | 8 | SPRINGHI17-19-40 | unknown | — | — | — |
| └ 66.21.19.56/29 | 8 | COMMANDL53-19-56 | unknown | — | — | — |
| └ 66.21.19.64/29 | 8 | KOHL-S-O62-19-64 | unknown | — | — | — |
| └ 66.21.19.72/29 | 8 | FLETCHER53-19-72 | unknown | — | — | — |
| └ 66.21.19.88/29 | 8 | CARDINAL54-19-88 | unknown | — | — | — |
| └ 66.21.19.96/29 | 8 | COUNTRYW31-19-96 | unknown | — | — | — |
| └ 66.21.19.104/29 | 8 | MAGNOLIA85-19-104 | unknown | — | — | — |
| └ 66.21.19.112/29 | 8 | ONE-CHOI43-19-112 | unknown | — | — | — |
| └ 66.21.19.120/29 | 8 | ACC-MCCO93-19-120 | unknown | — | — | — |
| └ 66.21.19.128/29 | 8 | COMCAST-31-19-128 | unknown | — | — | — |
| └ 66.21.19.144/29 | 8 | GREENTEC33-19-144 | unknown | — | — | — |
| └ 66.21.19.168/29 | 8 | COMMANDL63-19-168 | unknown | — | — | — |
| └ 66.21.19.184/29 | 8 | ALACHUA-61-19-184 | unknown | — | — | — |
| └ 66.21.19.192/29 | 8 | SOUTHWAS35-19-192 | unknown | — | — | — |
| └ 66.21.19.200/29 | 8 | TK422-DE34-19-200 | unknown | — | — | — |
| └ 66.21.19.208/29 | 8 | SEAWORLD44-19-208 | unknown | — | — | — |
| └ 66.21.19.232/29 | 8 | J-P-PERR51-19-232 | unknown | — | — | — |
| └ 66.21.19.240/29 | 8 | DREXEL-C12-19-240 | unknown | — | — | — |
| └ 66.21.19.248/29 | 8 | ADVANCED54-19-248 | unknown | — | — | — |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
256 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Business | 192 | 75% | 24 | |
| Residential | 64 | 25% | 6 |
Network & registry
Announced by
Covering announcement 66.20.0.0/15
- Prefix
- 66.20.0.0/15
- Announced by
- AS6389 AT&T Enterprises, LLC
- Type
- Residential
- Proxy exits
- 5
- Always-on exits
- 1
- RPKI
- No RPKI
- Netname
- BELLSNET-BLK8
- Registrant
- AT&T Enterprises, LLC
- RIR
- ARIN
Origin network
AS6389
US
- Name
- AT&T Enterprises, LLC
- Type
- Internet provider
- Registered
- Mar 28, 1996
- Domain
- att.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 66.20.0.0/15
66.20.0.0/15
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 66.
20. 0. 0/ 15 - Netname
- BELLSNET-BLK8
- Registrant
- AT&T Enterprises, LLC
- Organization
- AT&T Enterprises, LLC (AEL-360)
- Org address
- 208 S. Akard St., Dallas, TX, 75202
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-66-20-0-0-1
- Parent
- NET-66-0-0-0-0
- Created
- Sep 14, 2000
- RIR
- ARIN
- Country
- US
- Delegated
- Sep 14, 2000
- Status
- assigned
Report abuse
Abuse contact
- abuse@
att. net - Name
- abuse
- Phone
- +1-919-319-8167
- Handle
- ABUSE7-ARIN