Data as of Nov 9, 2026
198.228.192.0/18
No anonymizer space · no proxy exits in 30 daysAT&T Enterprises, LLC
Announcement
this exact prefix
RPKI valid
Announced by
Type
Mobile
Recent change
New origin Aug 2026
from AS7018 AT&T Enterprises, LLC, after 19.5 years unannounced
Announcements
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 198.228.192.0/20 since Dec 2010 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 198.228.194.0/24 since Aug 2024 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 198.228.195.0/24 since Aug 2024 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 198.228.200.0/24 since Oct 2011 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 198.228.201.0/24 since Dec 2010 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 198.228.203.0/24 since Nov 2015 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 198.228.204.0/24 since May 2024 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 198.228.205.0/24 since Jun 2024 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 198.228.206.0/24 since May 2024 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 198.228.207.0/24 since May 2024 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 198.228.208.0/20 since Dec 2010 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 198.228.217.0/24 since Dec 2010 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 198.228.224.0/20 since Dec 2010 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 198.228.230.0/24 since Dec 2010 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 198.228.237.0/24 since Jun 2016 | AS20057 | Mobile | AT&T Enterprises, LLC | |
| 198.228.248.0/21 since May 2026 | AS7287 | Mobile | AT&T Enterprises, LLC |
Network & registry
Origin network
AS7018
US
- Name
- AT&T Enterprises, LLC
- Type
- Internet provider
- Registered
- Jul 30, 1996
- Domain
- att.com
- Website
- www.att.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Aug 2026 · 3 mo
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 198.
228. 132. 0 - 198. 228. 255. 255 - Netname
- AEL-360
- 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-198-228-132-0-1
- Parent
- NET-198-0-0-0-0
- Created
- Apr 1, 2025
- RIR
- ARIN
- Country
- US
- Delegated
- Apr 1, 2025
- Status
- assigned
Report abuse
Abuse contact
- abuse@
att. net - Name
- abuse
- Phone
- +1-919-319-8167
- Handle
- ABUSE7-ARIN