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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.

IP address, prefix or AS number

AS35425 · 

curl -s "https://thenetworkery.com/api/v1/network-report?query=AS35425"
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Warning: AS35425 (BYTEMARK-AS) announces 22 IPv4 and 4 IPv6 prefixes. 2 warnings

AS pageAS35425
HolderBYTEMARK-AS Iomart Managed Services Limited
AllocationRIPE NCC, United Kingdom (GB), allocated 2005-08-04
Prefixes (IPv4 / IPv6)22 / 4
RPKI valid0% (0 / 26)
Upstreams and peers1
Peering policyNo

What to fix

  1. Warning

    10 of 26 announced prefixes have no ROA (RPKI not found): 5.28.56.0/21, 5.77.47.0/24, 5.153.224.0/21, 46.43.0.0/18, 80.68.80.0/20 (+5).

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

    Fix: Create a ROA for each at your RIR portal, with origin AS35425 and a max length equal to the prefix length:

    5.28.56.0/21 AS35425 max-length /21
5.77.47.0/24 AS35425 max-length /24
5.153.224.0/21 AS35425 max-length /21
46.43.0.0/18 AS35425 max-length /18
80.68.80.0/20 AS35425 max-length /20
89.16.160.0/19 AS35425 max-length /19
91.223.58.0/24 AS35425 max-length /24
109.75.161.0/24 AS35425 max-length /24
109.75.162.0/24 AS35425 max-length /24
109.75.163.0/24 AS35425 max-length /24

    Open in RPKI / ROA validator Guide

  2. 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 26 announced prefixes have no ROA (RPKI not found): 5.28.56.0/21, 5.77.47.0/24, 5.153.224.0/21, 46.43.0.0/18, 80.68.80.0/20 (+5).
  • Pass: AS35425 announces 22 IPv4 and 4 IPv6 prefixes.
  • Warning: 10 of 26 announced prefixes have no ROA (RPKI not found): 5.28.56.0/21, 5.77.47.0/24, 5.153.224.0/21, 46.43.0.0/18, 80.68.80.0/20 (+5).
  • Info: The RPKI state of 16 prefixes was not looked up (no ROA of AS35425 covers them; only the first 10 are checked).
  • Pass: Every announced prefix has an IRR route object.
  • Info: One upstream or peer seen (AS20860): an outage there takes the whole network off the internet.
HolderBYTEMARK-AS Iomart Managed Services Limited
IPv4 prefixes22
IPv6 prefixes4
RPKI10 not found · 16 not looked up
Downstream networks0
Routes to fix
PrefixRPKI
5.28.56.0/21 No ROA
5.77.47.0/24 No ROA
5.153.224.0/21 No ROA
46.43.0.0/18 No ROA
80.68.80.0/20 No ROA
89.16.160.0/19 No ROA
91.223.58.0/24 No ROA
109.75.161.0/24 No ROA
109.75.162.0/24 No ROA
109.75.163.0/24 No ROA

Upstreams and peers seen to the left 1

AS20860 iomart

Announced prefixes 26

5.28.56.0/21 5.77.47.0/24 5.153.224.0/21 46.43.0.0/18 80.68.80.0/20 89.16.160.0/19 91.223.58.0/24 109.75.161.0/24 109.75.162.0/24 109.75.163.0/24 109.75.164.0/24 185.4.176.0/22 185.15.240.0/22 185.90.192.0/22 193.32.103.0/24 194.76.16.0/23 194.76.26.0/23 212.110.160.0/19 213.138.96.0/19 213.175.196.0/24 213.175.208.0/24 213.175.216.0/24 2a0f:23c7::/32 2001:41c8::/29 2001:41c8::/32 2001:41c9::/32

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.
NameBYTEMARK-AS
HandleAS35425
RangeAS35425
Statusactive
Registered2005-08-04T14:25:45Z
Last changed2021-04-15T07:31:30Z
Abuse contactabuse@rapidswitch.com
Allocation
Registry (RIR)RIPE NCC
CountryUnited Kingdom (GB)
Delegated on2005-08-04
StatusAllocated
Delegated rangeAS35425

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

Contacts
RoleNameEmail
registrant Iomart Managed Services Limited
registrant RAPIDSWITCH-MNT
registrant RIPE-NCC-END-MNT
abuse Abuse Robot abuse@rapidswitch.com

Source: https://rdap.db.ripe.net/autnum/35425. 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: AS35425 is in PeeringDB as Bytemark Limited.
  • Info: Peering policy: No.
  • Info: No internet exchange ports are listed.
  • Warning: No public NOC, policy or technical contact.
NetworkBytemark Limited (Bytemark Hosting)
AS numberAS35425
TypeContent, Europe
Websitehttp://www.bytemark.co.uk
IRR as-setAS-BYTEMARK
Prefixes (IPv4 / IPv6)60 / 30
Traffic1-5Gbps, Mostly Outbound
Peering policyNo
LocationsNot Required
Ratio requiredNo
ContractsNot Required
Looking glasshttps://lg.bytemark.co.uk
Last updated2026-04-15

Source: PeeringDB. Results are cached for an hour.

Open in PeeringDB lookup