Data as of Nov 6, 2026
136.228.200.0/21
No anonymizer space · no proxy exits in 30 daysiboss,inc
Operators, sellers and brokers
Corporate gateways
| Name | Parent | In 136.228.200.0/21 | /24s |
|---|---|---|---|
| iboss | 2,048100% | 8 |
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 |
|---|---|---|---|---|---|---|
| 136.228.192.0/18 | 16,384 | IBOSS-8 | iboss,inc (IBOSS-8) · US | Direct Allocation | Feb 26, 2018 | ipadmin@ |
| └ 136.228.200.0/21 | 2,048 | SEA01-136-228-200-0-21 | unknown | Reassigned | Mar 29, 2022 | ipadmin@ via IBOSS-8 |
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
Registry
Holder
- Organization
- iboss,inc
- Handle
- IBOSS-8
- Range
- 136.
228. 192. 0/ 18 - Registration type
- Direct Allocation
- Record created
- Feb 26, 2018
Origin network
AS396253
US
- Name
- iboss,inc
- Type
- Business
- Registered
- Apr 14, 2017
- Domain
- iboss.com
- Website
- www.iboss.com
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Aug 2018
- Current origin since
- Aug 2018 · 8.2 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 136.
228. 200. 0/ 21 - Netname
- SEA01-136-228-200-0-21
- Registrant
- iboss,inc
- Organization
- iboss,inc (IBOSS-8)
- Org address
- 101 Federal St, Boston, MA, 02110
- Org country
- US
- Type
- Reassigned
- Handle
- NET-136-228-200-0-1
- Parent
- NET-136-228-192-0-1
- Created
- Mar 29, 2022
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 26, 2018
- Status
- assigned
Report abuse
Abuse contact
- ipadmin@
iboss. com - Name
- IPAdmin
- Phone
- +1-858-568-7051
- Handle
- IPADM789-ARIN