Data as of Nov 5, 2026
12.148.182.0/23
No anonymizer space · no proxy exits in 30 daysThe Northern Trust Company · space held by AT&T Enterprises, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Leased from | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|---|
| 12.148.180.0/22 since Jan 2026 | AS14379 | Business | AT&T Enterprises, LLC | |||
| 12.128.0.0/9 | AS7018 | Residential | IP broker Rackdog (part) | 5,205 282 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@ |
| └ 12.148.180.0/22 | 1,024 | ATT-NET-12-148-180-0 | Northern Trust Company (C07735636) · US | Reassigned | Jan 21, 2021 | 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
AS19299
US
- Name
- The Northern Trust Company
- Type
- Business
- Registered
- Apr 16, 2018
- Domain
- northerntrust.com
- Industry
- Banks, Credit Card Companies, Mortgage Providers
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Apr 2013
- Current origin since
- Mar 2020 · 6.7 yr
- Origin networks
- 2
- Last change of origin
- Mar 2020
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 12.
148. 180. 0/ 22 - Netname
- ATT-NET-12-148-180-0
- Registrant
- Northern Trust Company
- Organization
- Northern Trust Company (C07735636)
- Type
- Reassigned
- Handle
- NET-12-148-180-0-1
- Parent
- NET-12-0-0-0-1
- Created
- Jan 21, 2021
- 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