NETWORK LOOKUP TOOL
BGP Network Lookup for 4.21.64.0/18
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BigDataCloud Networks by CIDR APIParent Network
Network Details
BGP Prefix
4.21.64.0/18
BGP Prefix Network Address
4.21.64.0
BGP Prefix Last Address
4.21.127.255
Total Addresses
16,384
Registry
ARIN
Registry Status
assigned
Is Reachable Globally
true
Is Bogon
false
SubNetwork(s)
| Range From | Range To | Organisation |
|---|---|---|
| 4.21.59.16 | 4.21.68.47 |  Level 3 Parent, LLC |
| 4.21.68.48 | 4.21.68.55 | Navy-Marine Corps Relief Society |
| 4.21.68.56 | 4.21.68.63 | Level 3 Parent, LLC |
| 4.21.68.64 | 4.21.68.127 | Bechtel Corp. - Consulting |
| 4.21.68.128 | 4.21.68.191 | Level 3 Parent, LLC |
| 4.21.68.192 | 4.21.68.255 | Nadsys Inc. |
| 4.21.69.0 | 4.21.69.255 | Level 3 Parent, LLC |
| 4.21.70.0 | 4.21.70.255 | DC Water and Sewer Authority |
| 4.21.71.0 | 4.21.76.31 | Level 3 Parent, LLC |
| 4.21.76.32 | 4.21.76.63 | MRO Software Inc. |
Showing 10 of 108
Announced By
ASN
Organisation
Level 3 Parent, LLC
