Data as of Nov 6, 2026
216.52.251.0/24
No anonymizer space · no proxy exits in 30 daysGTT Communications Inc. · space held by PF IPV4 Borrower, LLC
IPv4 market
Path
2 · Leased from
4 · Use
Unknown
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 216. | 1,536 | UG-210 | PF IPV4 Borrower, LLC (PIHL-4) · US | Direct Allocation | Aug 24, 1998 | ipinfo@ |
| └ 216.52.250.0/23 | 512 | INAP-LAX-NCCF-216-52-250-0 | Childrens Oncology Group (C05147169) · US | Reassigned | Jul 3, 2014 | ipinfo@ via UG-210 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Announced by
Covering announcement 216.52.250.0/23
- Prefix
- 216.52.250.0/23
- Announced by
- AS3257 GTT Communications Inc.
- Type
- Unknown
- Leased from
- IP broker IPv4.Global
- RPKI
- No RPKI
- Netname
- INAP-LAX-NCCF-216-52-250-0
- Registrant
- Childrens Oncology Group
- RIR
- ARIN
IPv4 market
Holder
- Organization
- PF IPV4 Borrower, LLC
- Handle
- PIHL-4
- Range
- 216.
52. 250. 0 - 216. 52. 255. 255 - Registration type
- Direct Allocation
- Record created
- Aug 24, 1998
Origin network
AS3257
US
- Name
- GTT Communications Inc.
- Type
- Internet provider
- Registered
- Sep 30, 1994
- Domain
- gtt.net
- Website
- www.gtt.net
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
- VPN servers
- 244
Routing timeline
Who has announced 216.52.250.0/23
216.52.250.0/23
Routing history
- Pattern
- Stable
- First seen
- May 2025
- Current origin since
- May 2025 · 1.5 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 216.
52. 250. 0/ 23 - Netname
- INAP-LAX-NCCF-216-52-250-0
- Registrant
- Childrens Oncology Group
- Organization
- Childrens Oncology Group (C05147169)
- Type
- Reassigned
- Handle
- NET-216-52-250-0-1
- Parent
- NET-216-52-250-0-2
- Created
- Jul 3, 2014
- RIR
- ARIN
- Country
- US
- Delegated
- Aug 24, 1998
- Status
- assigned
Report abuse
Abuse contact
- ipinfo@
hilcostreambank. com - Name
- IP Admin
- Phone
- +1-212-610-5663
- Handle
- IPADM814-ARIN