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ASN Lookup Tool
AS6640 CENTURYLINK-TIER3-CLOUD

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS6640
Organisation
CenturyLink Communications, LLC
Name
CENTURYLINK-TIER3-CLOUD
Total IPv4 Addresses
34,048
Total IPv4 Prefixes
102
Total IPv6 Prefixes
0
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#4,832 out of 77,686
Registry
Arin
Registered Country
US flag US
Registered Country Name
United States of America (the)
Registered Date
1996-06-12
Registration Last Change
2018-10-04
Receiving From

The list of active Autonomous Systems (ASs) which send traffic to that ASN.

ASN
Organisation
AS209
US flagCenturyLink Communications, LLC
AS13768
CA flagAptum Technologies
AS13789
US flagUnitas Global
AS14744
US flagUnitas Global
AS19024
US flagUnitas Global
Showing 5 of 6
IPv4 Active Prefixes

This provides the list of IPv4 address space routes/prefixes currently announced on Border Gateway Protocol (BGP).

Prefix64.15.176.0/24
Range From64.15.176.0
Range To64.15.176.255
Prefix64.15.182.0/24
Range From64.15.182.0
Range To64.15.182.255
Prefix64.15.183.0/24
Range From64.15.183.0
Range To64.15.183.255
Prefix64.15.184.0/21
Range From64.15.184.0
Range To64.15.191.255
Prefix64.74.98.0/24
Range From64.74.98.0
Range To64.74.98.255
Showing 5 of 102
Autonomous System (AS) is a network (or collection of networks) that are all managed and supervised by a single entity or organisation. This tool provides a comprehensive ownership and connectivity report for any given AS number.