Data as of Nov 8, 2026
107.121.240.0/21
No anonymizer space · no proxy exits in 30 daysAT&T Enterprises, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 107.64.0.0/10 since Jul 2019 | AS7018 | Mobile | 13,917 96 always on | AT&T Enterprises, LLC |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 107.121.240.0/24 since Sep 2021 | AS7287 | Mobile | AT&T Enterprises, LLC | |
| 107.121.241.0/24 since Sep 2021 | AS7287 | Mobile | AT&T Enterprises, LLC | |
| 107.121.243.0/24 since Aug 2021 | AS7287 | Mobile | AT&T Enterprises, LLC | |
| 107.121.245.0/24 since Sep 2021 | AS7287 | Mobile | AT&T Enterprises, LLC | |
| 107.121.246.0/23 since Jan 2025 | AS7287 | Mobile | AT&T Enterprises, LLC |
Network & registry
Origin network
AS7287
US
- Name
- AT&T Enterprises, LLC
- Type
- Internet provider
- Registered
- Nov 1, 1996
- Domain
- att.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Sep 2021
- Current origin since
- Sep 2021 · 5.2 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 107.121.240.0/21 | AS7287 | /21 | ARIN | RPKI valid |
| 107.64.0.0/10 | AS7018 | /10 | ARIN | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS7287 | ARIN | AT&T Enterprises, LLC | MNT-AEL-360 | Sep 16, 2026 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 107.121.240.0/23 | AS7287 | ARIN | AT&T Enterprises, LLC | MNT-AEL-360 | Sep 16, 2026 |
Whois
Registration for this announcement
- Range
- 107.
64. 0. 0/ 10 - Netname
- ATT-MOBILITY-LLC
- 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-107-64-0-0-1
- Parent
- NET-107-0-0-0-0
- Created
- Feb 4, 2011
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 4, 2011
- Status
- assigned
Report abuse
Abuse contact
- abuse@
att. net - Name
- abuse
- Phone
- +1-919-319-8167
- Handle
- ABUSE7-ARIN