Data as of Nov 8, 2026
12.41.123.0/24
1 residential-proxy exit · 30 daysHF Management Services, LLC · space held by AT&T Enterprises, LLC
Residential-proxy exits
Proxy exits
1
0.39% of its addresses · 30 days
Providers
2
selling exits here
Oct 9, 2026 – Nov 7, 2026
Exits seen per day
4 observations
Proxy providers listing exits
- AnyIP
- FloppyData
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 12.0.0.0/9 | AS7018 | Residential | 8,083 437 always on | AT&T Enterprises, LLC | |
| 12.0.0.0/8 | AS7018 | Residential | 13,346 727 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@ |
| └ 12.41.123.0/24 | 256 | HF-MANAG443-123 | HF Management Services LLC (HMSL-10) · US | Reassigned | Aug 18, 2015 | — |
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
AS31824
US
- Name
- HF Management Services, LLC
- Type
- Business
- Registered
- Jun 1, 2018
- Domain
- healthfirst.org
- Industry
- Insurance Carriers and Agencies
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Jan 2007
- Current origin since
- Jan 2007 · 20 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS31824 | RADB | PNAP-NYM hfmanagement-4 | MAINT-AS1828 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 12.
41. 123. 0/ 24 - Netname
- HF-MANAG443-123
- Registrant
- HF Management Services LLC
- Organization
- HF Management Services LLC (HMSL-10)
- Org address
- 3 CORPORATE PL, PISCATAWAY, NJ, 08854
- Org country
- US
- Type
- Reassigned
- Handle
- NET-12-41-123-0-1
- Parent
- NET-12-0-0-0-1
- Created
- Aug 18, 2015
- 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