Data as of Nov 15, 2026
159.100.19.0/24
4 residential-proxy exits · 30 daysUltahost, Inc. · space held by firstcolo GmbH
Announcement
this exact prefix
RPKI valid
Announced by
Type
Hosting
Risk
50 / 100 · Medium
Proxy exits nearby
Residential-proxy exits
Proxy exits
4
1.6% of its addresses · 30 days
Always-on exits
4
100% of its exits
Providers
29
selling exits here
Oct 16, 2026 – Nov 14, 2026
Exits seen per day
7.5K observations
Proxy providers listing exits
- 711Proxy
- Ake.net
- AnyIP
- BirdProxies
- BottingTools
- ByteProxies
- Byteful
- Decodo
- Evomi
- FlashProxy
- FloppyData
- Geonode
- GonzoProxy
- IPRoyal
- Infatica
- InfiniteProxies
- Kookey
- Oxylabs
- PrivateProxy
- Proxiware
- Proxy-Seller
- ProxyEmpire
- ProxyRack
- ProxyWing
- Proxyma
- Shifter
- Thordata
- ThunderProxy
- VitalExclusive
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 159.100.0.0/19 since Oct 2016 | AS44066 | Hosting | 13 4 always on | firstcolo GmbH |
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 |
|---|---|---|---|---|---|---|
| 159.100.0.0/19 | 8,192 | DE-FIRSTCOLO | firstcolo GmbH (ORG-AISG3-RIPE) · DE | LEGACY | Oct 21, 2016 | abuse@ |
| └ 159.100.19.0/24 | 256 | ULTAHOST | UltaHost Inc (ORG-UI47-RIPE) · US | LEGACY | Sep 3, 2025 | u-abuse@ |
Network & registry
Registry
Holder
- Organization
- firstcolo GmbH
- Handle
- ORG-AISG3-RIPE
- Range
- 159.
100. 0. 0/ 19 - Registration type
- LEGACY
- Record created
- Oct 21, 2016
- Legacy
- yes
Origin network
AS214036
US
- Name
- Ultahost, Inc.
- Type
- Hosting
- Registered
- Oct 15, 2024
- Domain
- ultahost.com
- Website
- ultahost.com/
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Aug 2025
- Current origin since
- Aug 2025 · 1.2 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 159.100.19.0/24 | AS214036 | /32 | RIPE | RPKI valid |
| 159.100.0.0/19 | AS44066 | /32 | RIPE | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS214036 | RIPE | MNT-FIRSTCOLO | Aug 29, 2025 |
Whois
Registration for this announcement
- Range
- 159.
100. 19. 0/ 24 - Netname
- ULTAHOST
- Registrant
- UltaHost Inc
- Registrant country
- DE
- Organization
- UltaHost Inc (ORG-UI47-RIPE)
- Org country
- US
- Type
- LEGACY
- Created
- Sep 3, 2025
- Updated
- Sep 3, 2025
- Maintainer
- ACCELERATED-MNT
- RIR
- RIPE NCC
- Country
- DE
- Delegated
- Mar 31, 1992
- Status
- assigned
Report abuse
Abuse contact
- u-abuse@
ultahost. com - Name
- UltaHost Inc
- Handle
- UI48110-RIPE