Data as of Nov 8, 2026
155.170.128.0/17
No anonymizer space · no proxy exits in 30 daysAT&T Enterprises, LLC
Announcement
this exact prefix
RPKI valid
Announced by
Type
Mobile
Risk
10 / 100 · Low
Shared address
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 155.170.0.0/16 since Aug 2026 | AS7018 | Mobile | 3 | 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 |
|---|---|---|---|---|---|---|
| 155.170.0.0/16 | 65,536 | ATT-MOBILITY-LLC-155-170-0-0 | AT&T Enterprises, LLC (AEL-360) · US | Direct Allocation | Mar 24, 1992 | abuse@ |
| └ 155.170.128.0/25 | 128 | ATTMO3Z-155-170-128-0-1001291504 | unknown | — | — | — |
| └ 155.170.128.128/25 | 128 | ATTMO3Z-155-170-128-128-1001291504 | unknown | — | — | — |
| └ 155.170.129.0/25 | 128 | ATTMO3Z-155-170-129-0-1001291504 | unknown | — | — | — |
| └ 155.170.129.128/25 | 128 | ATTMO3Z-155-170-129-128-1001291504 | unknown | — | — | — |
| └ 155.170.136.0/22 | 1,024 | ATTMO3Z-155-170-136-0-1001291504 | unknown | — | — | — |
| └ 155.170.160.0/26 | 64 | ATTMO3Z-155-170-160-0-1001291504 | unknown | — | — | — |
| └ 155.170.160.64/26 | 64 | ATTMO3Z-155-170-160-64-1001291504 | unknown | — | — | — |
| └ 155.170.160.128/28 | 16 | ATTMO3Z-155-170-160-128-1001291504 | unknown | — | — | — |
| └ 155.170.160.144/28 | 16 | ATTMO3Z-155-170-160-144-1001291504 | unknown | — | — | — |
| └ 155.170.160.160/28 | 16 | ATTMO3Z-155-170-160-160-1001291504 | unknown | — | — | — |
| └ 155.170.160.176/28 | 16 | ATTMO3Z-155-170-160-176-1001291504 | unknown | — | — | — |
| └ 155.170.160.192/27 | 32 | ATTMO3Z-155-170-160-192-1001291504 | unknown | — | — | — |
| └ 155.170.160.224/27 | 32 | ATTMO3Z-155-170-160-224-1001291504 | unknown | — | — | — |
| └ 155.170.161.0/27 | 32 | ATTMO3Z-155-170-161-0-1001291504 | unknown | — | — | — |
| └ 155.170.161.32/27 | 32 | ATTMO3Z-155-170-161-32-1001291504 | unknown | — | — | — |
| └ 155.170.161.64/28 | 16 | ATTMO3Z-155-170-161-64-1001291504 | unknown | — | — | — |
| └ 155.170.161.80/28 | 16 | ATTMO3Z-155-170-161-80-1001291504 | unknown | — | — | — |
| └ 155.170.161.96/28 | 16 | ATTMO3Z-155-170-161-96-1001291504 | unknown | — | — | — |
| └ 155.170.161.112/28 | 16 | ATTMO3Z-155-170-161-112-1001291504 | unknown | — | — | — |
| └ 155.170.161.128/27 | 32 | ATTMO3Z-155-170-161-128-1001291504 | unknown | — | — | — |
| └ 155.170.161.160/27 | 32 | ATTMO3Z-155-170-161-160-1001291504 | unknown | — | — | — |
| └ 155.170.161.192/28 | 16 | ATTMO3Z-155-170-161-192-1001291504 | unknown | — | — | — |
| └ 155.170.161.208/28 | 16 | ATTMO3Z-155-170-161-208-1001291504 | unknown | — | — | — |
| └ 155.170.161.224/28 | 16 | ATTMO3Z-155-170-161-224-1001291504 | unknown | — | — | — |
| └ 155.170.161.240/28 | 16 | ATTMO3Z-155-170-161-240-1001291504 | unknown | — | — | — |
| └ 155.170.176.0/22 | 1,024 | ATTMO3Z-155-170-176-0-1001291505 | unknown | — | — | — |
| └ 155.170.180.0/22 | 1,024 | ATTMO3Z-155-170-180-0-1001291505 | unknown | — | — | — |
| └ 155.170.184.0/22 | 1,024 | ATTMO3Z-155-170-184-0-1001291505 | unknown | — | — | — |
| └ 155.170.188.0/22 | 1,024 | ATTMO3Z-155-170-188-0-1001291505 | unknown | — | — | — |
| └ 155.170.201.0/24 | 256 | ATTMO3Z-155-170-201-0-1001291505 | unknown | — | — | — |
| └ 155.170.206.0/25 | 128 | ATTMO3Z-155-170-206-0-1001291505 | unknown | — | — | — |
| └ 155.170.206.128/25 | 128 | ATTMO3Z-155-170-206-128-1001291505 | unknown | — | — | — |
| └ 155.170.207.0/25 | 128 | ATTMO3Z-155-170-207-0-1001291505 | unknown | — | — | — |
| └ 155.170.207.128/25 | 128 | ATTMO3Z-155-170-207-128-1001291505 | unknown | — | — | — |
| └ 155.170.208.0/21 | 2,048 | ATTMO3Z-155-170-208-0-1001291505 | unknown | — | — | — |
| └ 155.170.216.0/21 | 2,048 | ATTMO3Z-155-170-216-0-1001291505 | unknown | — | — | — |
Network & registry
Origin network
AS20057
US
- Name
- AT&T Enterprises, LLC
- Type
- Internet provider
- Registered
- Mar 20, 2001
- 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
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 155.170.128.0/17 | AS20057 | /17 | ARIN | RPKI valid |
| 155.170.0.0/16 | AS7018 | /16 | ARIN | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS20057 | ARIN | AT&T Enterprises, LLC | MNT-AEL-360 | Sep 15, 2026 |
Whois
Registration for this announcement
- Range
- 155.
170. 0. 0/ 16 - Netname
- ATT-MOBILITY-LLC-155-170-0-0
- 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-155-170-0-0-1
- Parent
- NET-155-0-0-0-0
- Created
- Mar 24, 1992
- RIR
- ARIN
- Country
- US
- Delegated
- Mar 24, 1992
- Status
- assigned
Report abuse
Abuse contact
- abuse@
att. net - Name
- abuse
- Phone
- +1-919-319-8167
- Handle
- ABUSE7-ARIN