Network report

Who holds an IP address, prefix or AS number, how it is routed (origin AS, RPKI, IRR), its reverse DNS, blocklist listings and PeeringDB record, with what to fix first.

AS21351 · 0 seconds ago

curl -s "https://thenetworkery.com/api/v1/network-report?query=AS21351"

JSON Docs

Warning: AS21351 (CANALPLUSTELECOM) announces 23 IPv4 and 19 IPv6 prefixes. 3 warnings

AS page	AS21351
Holder	CANALPLUSTELECOM Canal + Telecom SAS
Allocation	RIPE NCC, Guadeloupe (GP), allocated 2001-11-07
Prefixes (IPv4 / IPv6)	23 / 19
RPKI valid	76% (32 / 42)
Upstreams and peers	43
Peering policy	Selective

What to fix

Warning

10 of 42 announced prefixes have no ROA (RPKI not found): 104.250.0.0/19, 107.191.208.0/20, 154.67.0.0/17, 154.67.2.0/24, 154.67.36.0/22 (+5).

Without a ROA, networks cannot tell your routes from a hijack.

Fix: Create a ROA for each at your RIR portal, with origin AS21351 and a max length equal to the prefix length:

104.250.0.0/19 AS21351 max-length /19
107.191.208.0/20 AS21351 max-length /20
154.67.0.0/17 AS21351 max-length /17
154.67.2.0/24 AS21351 max-length /24
154.67.36.0/22 AS21351 max-length /22
154.67.128.0/17 AS21351 max-length /17
2c0f:f608:4000::/36 AS21351 max-length /36
2c0f:f608:4100::/40 AS21351 max-length /40
2605:adc0:1000::/36 AS21351 max-length /36
2605:adc0:2000::/36 AS21351 max-length /36

Open in RPKI / ROA validator Guide

Warning
10 of 42 announced prefixes have no IRR route object: 185.29.50.0/24, 154.67.36.0/22, 2605:adc0:1000::/36, 213.188.176.0/23, 5.187.112.0/20 (+5).

Many networks build their prefix filters from IRR data; without route objects some of them drop the routes.

Fix: Create route (IPv4) and route6 (IPv6) objects with origin AS21351 in your RIR’s IRR database (or RADB).
```
route: 185.29.50.0/24
origin: AS21351

route: 154.67.36.0/22
origin: AS21351

route6: 2605:adc0:1000::/36
origin: AS21351
```
Open in ASN & BGP prefix lookup
Warning

No public NOC, policy or technical contact.

Other networks use these addresses to set up peering and to reach you during an incident.

Fix: Add a role contact (for example noc@ or peering@ an address you monitor) with visibility Public.

Open in PeeringDB lookup

Checks

Routing and RPKI 10 of 42 announced prefixes have no ROA (RPKI not found): 104.250.0.0/19, 107.191.208.0/20, 154.67.0.0/17, 154.67.2.0/24, 154.67.36.0/22 (+5).

Pass: AS21351 announces 23 IPv4 and 19 IPv6 prefixes.
Warning: 10 of 42 announced prefixes have no ROA (RPKI not found): 104.250.0.0/19, 107.191.208.0/20, 154.67.0.0/17, 154.67.2.0/24, 154.67.36.0/22 (+5).
Info: 32 of 42 announced prefixes are RPKI valid.
Warning: 10 of 42 announced prefixes have no IRR route object: 185.29.50.0/24, 154.67.36.0/22, 2605:adc0:1000::/36, 213.188.176.0/23, 5.187.112.0/20 (+5).
Info: 43 upstreams and peers, 10 downstream networks seen.

Holder	CANALPLUSTELECOM Canal + Telecom SAS
IPv4 prefixes	23
IPv6 prefixes	19
RPKI	32 valid · 10 not found
Without IRR route object	10
Downstream networks	10

Routes to fix

Prefix	RPKI
104.250.0.0/19	No ROA
107.191.208.0/20	No ROA
154.67.0.0/17	No ROA
154.67.2.0/24	No ROA
154.67.36.0/22	No ROA
154.67.128.0/17	No ROA
2c0f:f608:4000::/36	No ROA
2c0f:f608:4100::/40	No ROA
2605:adc0:1000::/36	No ROA
2605:adc0:2000::/36	No ROA

Upstreams and peers seen to the left 43

AS1299 Arelion (Twelve99) AS2914 NTT Global IP Network AS6762 Telecom Italia Sparkle AS30844 Liquid Intelligent Technologies AS4788 Telekom Malaysia Berhad (TM) AS12956 Telxius Cable AS6939 Hurricane Electric AS3303 Swisscom AS9002 RETN AS13030 Init7 AS4230 Claro AS33891 Core-Backbone

Announced prefixes 42

5.187.96.0/19 5.187.96.0/20 5.187.112.0/20 46.238.128.0/18 93.121.128.0/17 95.138.0.0/17 95.138.112.0/22 95.138.112.0/23 104.250.0.0/19 107.191.208.0/20 154.67.0.0/17 154.67.2.0/24 154.67.36.0/22 154.67.128.0/17 161.22.64.0/18 185.29.48.0/22 185.29.50.0/24 185.161.8.0/24 213.16.0.0/19 213.188.160.0/19 213.188.176.0/22 213.188.176.0/23 213.188.190.0/24 2a02:1390:1000::/36 2a02:1390:1000::/40 2a02:1390:2000::/36 2a02:1390:3000::/40 2a02:1390:4000::/40 2a02:1390:5000::/40 2a02:1390:7000::/36 2a02:1390:9000::/40 2a02:1390:b000::/40 2a02:1390:d000::/40 2a02:1390:f000::/40 2a02:1391:5100::/40 2a02:1397:4000::/40 2a02:1397:5000::/40 2c0f:f608:4000::/36 2c0f:f608:4100::/40 2605:adc0:1000::/36 2605:adc0:2000::/36 2803:1680:3000::/36

Source: RIPEstat (RIPE NCC RIS, Routinator, IRR); AS names: Team Cymru

Open in ASN & BGP prefix lookup

Registration Found at rdap.db.ripe.net.

Pass: Found at rdap.db.ripe.net.

Name	CANALPLUSTELECOM
Handle	AS21351
Range	AS21351
Status	active
Registered	2001-11-07T18:30:33Z
Last changed	2024-05-13T11:18:28Z
Abuse contact	cplustelecom.abuse@canal-plus.com

Allocation

Registry (RIR)	RIPE NCC
Country	Guadeloupe (GP)
Delegated on	2001-11-07
Status	Allocated
Delegated range	AS21351

Source: RIR delegation data, updated daily. The country is where the range was registered, not necessarily where it is used.

Contacts

Role	Name	Email
registrant	CPLUSTELECOM-ADMIN-MNT
registrant	Canal + Telecom SAS
registrant	RIPE-NCC-END-MNT
abuse	Abuse-C Role	cplustelecom.abuse@canal-plus.com

Source: https://rdap.db.ripe.net/autnum/21351. Registration data from rdap.db.ripe.net, shown under its terms of use (terms): not for marketing or bulk collection. Personal contacts in this registry are not shown.

Open in WHOIS / RDAP lookup

PeeringDB No public NOC, policy or technical contact.

Pass: AS21351 is in PeeringDB as Canal+ Telecom.
Info: Peering policy: Selective.
Info: Present at 11 internet exchanges with 11 ports (262.2G in total).
Warning: No public NOC, policy or technical contact.

Network	Canal+ Telecom (Mediaserv)
AS number	AS21351
Type	Cable/DSL/ISP, Global
Website	http://www.canalplustelecom.com/
IRR as-set	AS-CPLUSTELECOM
Prefixes (IPv4 / IPv6)	300 / 100
Traffic	Mostly Inbound
Peering policy	Selective
Policy URL	http://www.as21351.mq/
Locations	Not Required
Ratio required	No
Contracts	Not Required
Looking glass	http://www.as21351.mq/looking-glass/
Last updated	2026-03-25

Source: PeeringDB. Results are cached for an hour.

Open in PeeringDB lookup