Data as of Nov 9, 2026
143.20.180.0/22
768 anonymizer addresses · 75%14 residential-proxy exits · 30 daysTier.Net Technologies LLC · space held by Net and Grid Research, LLC
Residential-proxy exits
Proxy exits
14
1.4% of its addresses · 30 days
Always-on exits
8
57% of its exits
Spread
1 of 4
/24s with at least one exit
Providers
46
selling exits here
Oct 10, 2026 – Nov 8, 2026
Exits seen per day
6.2K observations
Proxy providers listing exits
- 711Proxy
- 911Proxy
- 9Proxy
- Ake.net
- B2Proxy
- BestProxy
- BlurPath
- BottingTools
- Byteful
- CatProxies
- CliProxy
- DataImpulse
- Decodo
- EZProxies
- Evomi
- FastProxy
- FlashProxy
- Geonode
- GloryCloud
- IPFly
- IPPeak
- InfiniteProxies
- KindProxy
- LudaxProxy
- MoMoProxy
- NSocks
- NovProxy
- NovaProxy
- Novada
- Oxylabs
- PrivateByte
- Proxmint
- Proxy302
- Proxy4U
- ProxyGeo
- ProxyRack
- PuraRoute
- RainProxy
- RapidProxy
- RoamProxy
- Shifter
- Smartproxy
- SwiftProxy
- YumiProxy
- ZENPROXY_LITE
- ZENPROXY_PREMIUM
IPv4 market
Path
Operators, sellers and brokers
Proxy providers
| Name | Parent | In 143.20.180.0/22 | /24s |
|---|---|---|---|
| IPRoyal | 25625% | 1 |
Leased from
IP brokers
| Name | In 143.20.180.0/22 | /24s |
|---|---|---|
| IPXO | 51250% | 2 |
Leased from
Owners leasing their own space
| Name | In 143.20.180.0/22 | /24s |
|---|---|---|
| Gauss Research Laboratory | 76875% | 3 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
143.20.180.0/22
From the registry to its use
- Apr 14, 2025Registry recordNet and Grid Research, LLCLEGACY143.20.0.0/16
- Apr 18, 2025– Jun 28, 2025
- Apr 30, 2025AssignedInternet Utilities Europe and Asia LimitedLEGACY143.20.180.0/22
- Apr 30, 2025– Jun 4, 2025
- Jun 29, 2025– today
- Nov 20, 2025– Dec 1, 2025
- Jan 31, 2026Route objectAS397423 Tier.Net Technologies LLCRADB route object for AS397423 Tier.Net Technologies LLC, maintainer MAINT-AS397423
- todayLeased fromIPXOIP broker
- todayUsedIPRoyalProxy seller
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Operator | Leased from | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|---|---|
| 143.20.180.0/24 since Aug 2026 | AS275019 | Unknown | IP broker IPXO | 14 8 always on | Net and Grid Research, LLC | ||
| 143.20.181.0/24 since Nov 2025 | AS42831 | Datacenter proxy | IP broker IPXO | Net and Grid Research, LLC | |||
| 143.20.182.0/24 since Jul 2026 | AS212384 | ISP proxy | Proxy providerssold by IPRoyal | IP broker IPXO | Net and Grid Research, LLC | ||
| 143.20.183.0/24 since Dec 2025 | AS42831 | Datacenter proxy | IP broker IPXO | Net and Grid Research, 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 |
|---|---|---|---|---|---|---|
| 143.20.0.0/16 | 65,536 | us-netandgrid-19900805 | Net and Grid Research, LLC (ORG-NAGR1-RIPE) · US | LEGACY | Apr 14, 2025 | cthomas57@ |
| └ 143.20.128.0/17 | 32,768 | NET-143-20-128-0-17 | Internet Utilities Europe and Asia Limited (ORG-IL687-RIPE) · GB | LEGACY | Apr 17, 2025 | report@ |
| └ 143.20.180.0/22 | 1,024 | NET-143-20-180-0-22 | Internet Utilities Europe and Asia Limited (ORG-IL687-RIPE) · GB | LEGACY | Apr 30, 2025 | report@ |
| └ 143.20.180.0/24 | 256 | NASANET-AC-SAS | unknown | LEGACY | Aug 20, 2026 | report@ |
| └ 143.20.181.0/24 | 256 | NET-143-20-181-0-24 | unknown | LEGACY | Nov 30, 2025 | report@ |
| └ 143.20.182.0/24 | 256 | NET-143-20-182-0-24 | unknown | LEGACY | Oct 28, 2026 | report@ |
| └ 143.20.183.0/24 | 256 | NET-143-20-183-0-24 | unknown | LEGACY | Dec 10, 2025 | report@ |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
1,024 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Datacenter proxyanonymizer | 512 | 50% | 2 | |
| ISP proxyanonymizer | 256 | 25% | 1 | |
| Unknown | 256 | 25% | 1 |
Network & registry
IPv4 market
Holder
- Organization
- Net and Grid Research, LLC
- Handle
- ORG-NAGR1-RIPE
- Range
- 143.
20. 0. 0/ 16 - Registration type
- LEGACY
- Record created
- Apr 14, 2025
- Legacy
- yes
Origin network
AS397423
US
- Name
- Tier.Net Technologies LLC
- Type
- Hosting
- Registered
- Mar 26, 2019
- Domain
- tier.net
- Website
- www.tier.net
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 62
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Apr 2025
- Current origin since
- Jun 2025 · 1.4 yr
- Origin networks
- 3
- Last change of origin
- Nov 2025
Recorded history
History
- Handoffs
- 3
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS397423 | RADB | Tier.Net Customer Object | MAINT-AS397423 | Jan 31, 2026 |
Whois
Registration for this announcement
- Range
- 143.
20. 180. 0/ 22 - Netname
- NET-143-20-180-0-22
- Registrant
- Internet Utilities Europe and Asia Limited
- Registrant country
- EU
- Organization
- Internet Utilities Europe and Asia Limited (ORG-IL687-RIPE)
- Org country
- GB
- Type
- LEGACY
- Created
- Apr 30, 2025
- Updated
- Nov 28, 2025
- Maintainer
- netutils-mnt
- RIR
- RIPE NCC
- Country
- US
- Delegated
- Aug 5, 1990
- Status
- assigned
Report abuse
Abuse contact
- report@
abuseradar. com - Name
- Internet Utilities Abuse Contact
- Handle
- AR834