Overview
Lumen / Level 3 operates a transit or backbone network associated with AS3356.
This record includes the representative IPv4 CIDR 5.252.72.0/24. It is not an exhaustive list of the network’s address space or current routing announcements.
This is a network-origin record, not an exact physical-facility location or proof that a request is automated. Evaluate the ASN and CIDR together with the User-Agent, request path, request rate, session behavior, and application context before enforcement.
Provider and network
- Network / Provider Name
- Lumen / Level 3
- Registered / Operating Organization
- Level 3 Parent, LLC
- ISP / Network Operator
- Level 3 Parent, LLC
- ASN
-
AS3356 - ASN Name
- LEVEL3
- Network Name
- Lumen / Level 3 network
- Current Services
- IP transit, backbone routing, peering, carrier infrastructure
- Provider Type
- Transit carrier
- Network Type
- Transit backbone
Representative IP range
- Representative IP Version
- IPv4
- Representative IP / CIDR
-
5.252.72.0/24 - Range Scope
- Representative
- Range Label
- Representative Lumen / Level 3 IPv4 range
- Range Start
-
5.252.72.0 - Range End
-
5.252.72.255 - Example IP
-
5.252.72.1 - Example IP Decimal
-
100419585
Network scope
- Registry Country
- US
Traffic and handling
- Traffic Classification
- Network Infrastructure Traffic
- Traffic Label
- Transit / Carrier
- Risk Level
- Low
- Recommended Action
- Use for routing context only. Do not block a transit ASN or representative backbone range as though it identifies the originating customer.
- Default Rule Action
- Log
- Common Pattern
- Transit and backbone ranges provide routing context and may carry traffic for many unrelated downstream networks.
- Detection Notes
- Use AS3356 and representative CIDR 5.252.72.0/24 as routing context. Confirm the actual origin network, request identity, and behavior before enforcement.