AS33820
RELX GROUP PLC
AS33820 is RELX GROUP PLC (elsevier.com). It announces 16,384 IPv4 addresses in 19 prefixes, and 0 IPv6 prefixes.
United Kingdom· RIPE· allocated 2004-08-10· business
16,384
IPv4 addresses announced
19
IPv4 prefixes
0
IPv6 prefixes
100.00%
of its routes RPKI-valid
16,384
of its IPv4 geolocated
2
countries
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- United Kingdom15,360 · 93.75%
- United States1,024 · 6.25%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- REED-ELSEVIER-AS
- name
- RELX GROUP PLC
- org
- ORG-REGP1-RIPE
- org name
- RELX GROUP PLC
- org address
- 1-3 Strand, WC2N 5JR, London, UNITED KINGDOM
- org country
- GB
- country
- GB
- source
- ripe
- status
- ASSIGNED
- created
- 2004-08-10
- updated
- 2026-03-18
- maintainer
- RIPE-NCC-END-MNT|RETS-RIPE-MNT
- abuse name
- RETS RIPE
- abuse email
- net-admin@elsevier.com
- abuse kind
- role
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- 0.02%
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 145.36.0.0/20 | United Kingdom | valid | 16 | 2026-10-02 |
| 145.36.16.0/20 | United Kingdom | valid | 17 | 2026-10-02 |
| 145.36.32.0/20 | United Kingdom | valid | 17 | 2026-10-02 |
| 145.36.48.0/24 | United Kingdom | valid | 16 | 2026-10-02 |
| 145.36.49.0/24 | United Kingdom | valid | 16 | 2026-10-02 |
| 145.36.50.0/24 | United Kingdom | valid | 16 | 2026-10-02 |
| 145.36.51.0/24 | United Kingdom | valid | 16 | 2026-10-02 |
| 145.36.52.0/24 | United Kingdom | valid | 16 | 2026-10-02 |
| 145.36.53.0/24 | United Kingdom | valid | 16 | 2026-10-02 |
| 145.36.54.0/24 | United Kingdom | valid | 16 | 2026-10-02 |
| 145.36.55.0/24 | United Kingdom | valid | 17 | 2026-10-02 |
| 145.36.56.0/24 | United Kingdom | valid | 16 | 2026-10-02 |
| 145.36.57.0/24 | United Kingdom | valid | 16 | 2026-10-02 |
| 145.36.58.0/24 | United Kingdom | valid | 16 | 2026-10-02 |
| 145.36.59.0/24 | United Kingdom | valid | 17 | 2026-10-02 |
| 198.176.121.0/24 | United States | valid | 16 | 2026-10-02 |
| 198.176.123.0/24 | United States | valid | 17 | 2026-10-02 |
| 198.176.124.0/24 | United States | valid | 16 | 2026-10-02 |
| 198.176.126.0/24 | United States | valid | 16 | 2026-10-02 |
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