Data as of Nov 5, 2026
12.120.58.0/24
No anonymizer space · no proxy exits in 30 daysAT&T Enterprises, LLC
Announcement
this exact prefix
RPKI valid
Announced by
Type
Business
Risk
30 / 100 · Medium
Recently moved
Recent change
New origin Sep 28, 2026
from AS7291 AT&T Enterprises, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 12.112.0.0/12 since Sep 2025 | AS7018 | Residential | 399 24 always on | AT&T Enterprises, LLC | |
| 12.0.0.0/9 | AS7018 | Residential | 8,094 440 always on | AT&T Enterprises, LLC | |
| 12.0.0.0/8 | AS7018 | Residential | 13,299 722 always on | AT&T Enterprises, LLC |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, 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@ |
| └ 12.120.0.0/16 | 65,536 | ATTSVI-12-120-0-0 | AT&T Worldnet Services (C00716213) · US | Reassigned | Nov 26, 2003 | abuse@ via ATT |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
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
Origin network
AS7291
US
- Name
- AT&T Enterprises, LLC
- 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
- Rotating
- First seen
- Sep 2010
- Current origin since
- Sep 28, 2026 · 1 mo
- Origin networks
- 2
- Last change of origin
- May 2026
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 12.120.58.0/24 | AS7291 | /24 | ARIN | RPKI valid |
| 12.112.0.0/12 | AS7018 | /12 | ARIN | Another network |
Whois
Registration for this announcement
- Range
- 12.
120. 0. 0/ 16 - Netname
- ATTSVI-12-120-0-0
- Registrant
- AT&T Worldnet Services
- Organization
- AT&T Worldnet Services (C00716213)
- Type
- Reassigned
- Handle
- NET-12-120-0-0-1
- Parent
- NET-12-0-0-0-1
- Created
- Nov 26, 2003
- RIR
- ARIN
- Country
- US
- Delegated
- Aug 23, 1983
- Status
- assigned
Report abuse
Abuse contact
- abuse@
att. net - Name
- abuse
- Phone
- +1-919-319-8167
- Handle
- ABUSE7-ARIN