Data as of Nov 7, 2026
12.203.211.0/24
1 residential-proxy exit · 30 daysEsparto Broadband Inc · space held by AT&T Enterprises, LLC
Residential-proxy exits
Proxy exits
1
0.39% of its addresses · 30 days
Providers
3
selling exits here
Oct 8, 2026 – Nov 6, 2026
Exits seen per day
7 observations
Proxy providers listing exits
- FastProxy
- LemonBright
- VitalExclusive
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Leased from | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|---|
| 12.128.0.0/9 | AS7018 | Residential | IP broker Rackdog (part) | 5,243 285 always on | AT&T Enterprises, LLC | |
| 12.0.0.0/8 | AS7018 | Residential | 13,307 719 always on | AT&T Enterprises, LLC |
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 |
|---|---|---|---|---|---|---|
| 12.0.0.0/8 | 16,777,216 | ATT | AT&T Enterprises, LLC (AEL-360) · US | Direct Allocation | Aug 23, 1983 | abuse@ |
| └ 12.203.0.0/16 | 65,536 | ATTWORLD25 | AT&T Services, Inc. (ATTW) · US | Reallocated | May 4, 2010 | — |
| └ 12.203.210.0/23 | 512 | AIRESPRI34-210 | Airespring-Esparto Broadband (AB-1549) · US | Reassigned | Jan 28, 2020 | provisioning@ |
Network & registry
Announced by
Covering announcement 12.203.210.0/23
- Prefix
- 12.203.210.0/23
- Announced by
- AS36495 Esparto Broadband Inc
- Type
- Residential
- Proxy exits
- 10
- Always-on exits
- 2
- RPKI
- RPKI valid
- Netname
- AIRESPRI34-210
- Registrant
- Airespring-Esparto Broadband
- RIR
- ARIN
IPv4 market
Holder
- Organization
- AT&T Enterprises, LLC
- Handle
- AEL-360
- Range
- 12.
0. 0. 0/ 8 - Registration type
- Direct Allocation
- Record created
- Aug 23, 1983
- Legacy
- yes
- Reallocated to
- AT&T Services, Inc. (ATTW)
- Reallocated range
- 12.
203. 0. 0/ 16 - Reallocated
- May 4, 2010
Origin network
AS36495
US
- Name
- Esparto Broadband Inc
- Type
- Internet provider
- Registered
- Mar 6, 2025
- Domain
- espartobroadband.com
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
12.203.210.0/23
Routing history
- Pattern
- Stable
- First seen
- May 2025
- Current origin since
- May 2025 · 1.5 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 12.203.210.0/23 | AS36495 | /24 | ARIN | RPKI valid |
IRR
Route objects on 12.203.210.0/23
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS36495 | ARIN | AT&T Enterprises, LLC | MNT-AEL-360 | Sep 11, 2026 |
Whois
Registration for this announcement
- Range
- 12.
203. 210. 0/ 23 - Netname
- AIRESPRI34-210
- Registrant
- Airespring-Esparto Broadband
- Organization
- Airespring-Esparto Broadband (AB-1549)
- Org address
- 17214 FREMONT, ESPARTO, CA, 95627
- Org country
- US
- Type
- Reassigned
- Handle
- NET-12-203-210-0-1
- Parent
- NET-12-203-0-0-1
- Created
- Jan 28, 2020
- RIR
- ARIN
- Country
- US
- Delegated
- Aug 23, 1983
- Status
- assigned
Report abuse
Abuse contact
- provisioning@
airespring. com - Name
- Knightley, Steve
- Phone
- +1-530-681-5141
- Handle
- KNIGH340-ARIN