Data as of Nov 9, 2026
217.156.57.0/24
Anonymizer · ISP proxyNTT America, Inc. · space held by Institutul National de Cercetare-Dezvoltare in informatica - ICI Bucuresti
IPv4 market
Path
1 · Holder
record created Dec 14, 2001
2 · Leased from
its owner, directly
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
Owners leasing their own space
| Name | In 217.156.57.0/24 | /24s |
|---|---|---|
| Institutul National de Cercetare-Dezvoltare in informatica - ICI Bucuresti | 256100% | 1 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
217.156.57.0/24
From the registry to its use
- Dec 14, 2001Registry recordInstitutul National de Cercetare-Dezvoltare in informatica - ICI BucurestiALLOCATED PA217.156.0.0/17
- May 9, 2005– Apr 15, 2006
- Apr 22, 2006– Oct 8, 2013
- Oct 15, 2013– Jun 13, 2021
- Jun 14, 2021– Jan 15, 2022
- Oct 30, 2023AssignedTeen Telecom SRLASSIGNED PA217.156.56.0/22
- May 24, 2025– Nov 8, 2026
- May 30, 2025Route objectAS2914 NTT America, Inc.RIPE route object for AS2914 NTT America, Inc., maintainer TEEN-MNT TEENTELECOM
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 |
|---|---|---|---|---|---|---|
| 217.156.0.0/17 | 32,768 | RO-RNC-20010221 | Institutul National de Cercetare-Dezvoltare in informatica - ICI Bucuresti (ORG-RA19-RIPE) · RO | ALLOCATED PA | Dec 14, 2001 | abuse@ |
| └ 217.156.56.0/22 | 1,024 | TEENTELECOM-22 | Teen Telecom SRL | ASSIGNED PA | Oct 30, 2023 | abuse-teentelecom@ |
Network & registry
IPv4 market
Holder
- Organization
- Institutul National de Cercetare-Dezvoltare in informatica - ICI Bucuresti
- Handle
- ORG-RA19-RIPE
- Range
- 217.
156. 0. 0/ 17 - Registration type
- ALLOCATED PA
- Record created
- Dec 14, 2001
Origin network
AS2914
US
- Name
- NTT America, Inc.
- Type
- Internet provider
- Registered
- Dec 7, 1998
- Domain
- ntt.net
- Website
- www.gin.ntt.net/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Reactivated
- First seen
- May 2005
- Current origin since
- May 2025 · 1.5 yr
- Origin networks
- 5
- Last change of origin
- May 2025
Recorded history
History
- Handoffs
- 4
Whois
Registration for this announcement
- Range
- 217.
156. 56. 0/ 22 - Netname
- TEENTELECOM-22
- Registrant
- Teen Telecom SRL
- Registrant country
- RO
- Organization
- Teen Telecom SRL
- Org country
- RO
- Type
- ASSIGNED PA
- Created
- Oct 30, 2023
- Updated
- Oct 6, 2026
- Maintainer
- AS3233-MNT
- RIR
- RIPE NCC
- Country
- RO
- Delegated
- Feb 21, 2001
- Status
- assigned
Report abuse
Abuse contact
- abuse-teentelecom@
rnc. ro - Name
- Abuse contact role object
- Handle
- ACRO66003-RIPE