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ASN Lookup Tool
AS33820 REED-ELSEVIER-AS

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ASN Extended Info API & BGP Active Prefixes API
ASN Details
ASN
AS33820
Organisation
RELX GROUP PLC
Name
REED-ELSEVIER-AS
Total IPv4 Addresses
65,280
Total IPv4 Prefixes
14
Total IPv6 Prefixes
0
Total IPv4 Bogon Prefixes
0
Total IPv6 Bogon Prefixes
0
IPv4 Space Rank
#3,605 out of 77,680
Registry
Ripe
Registered Country
GB flag GB
Registered Country Name
United Kingdom of Great Britain and Northern Ireland (the)
Registered Date
2004-08-10
Registration Last Change
2023-09-07
Receiving From

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

ASN
Organisation
AS3356
US flagLevel 3 Parent, LLC
AS15695
NL flagExpereo International BV
IPv4 Active Prefixes

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

Prefix145.36.0.0/17
Range From145.36.0.0
Range To145.36.127.255
Prefix145.36.128.0/20
Range From145.36.128.0
Range To145.36.143.255
Prefix145.36.145.0/24
Range From145.36.145.0
Range To145.36.145.255
Prefix145.36.146.0/23
Range From145.36.146.0
Range To145.36.147.255
Prefix145.36.148.0/22
Range From145.36.148.0
Range To145.36.151.255
Showing 5 of 14
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.