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.

AS45474 · 0 seconds ago

curl -s "https://thenetworkery.com/api/v1/network-report?query=AS45474"

JSON Docs

Warning: AS45474 (NEXUSGUARD-AS-AP) announces 89 IPv4 and 18 IPv6 prefixes. 3 warnings

AS page	AS45474
Holder	NEXUSGUARD-AS-AP - Nexusguard Pte. Ltd.
Allocation	APNIC, Singapore (SG), allocated 2008-10-15
Prefixes (IPv4 / IPv6)	89 / 18
RPKI valid	97% (104 / 107)
Upstreams and peers	88
Peering policy	Selective

What to fix

Warning
3 of 107 announced prefixes have no ROA (RPKI not found): 207.192.148.0/24, 207.192.186.0/24, 207.192.187.0/24.

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

Fix: Create a ROA for each at your RIR portal, with origin AS45474 and a max length equal to the prefix length:
```
207.192.148.0/24 AS45474 max-length /24
207.192.186.0/24 AS45474 max-length /24
207.192.187.0/24 AS45474 max-length /24
```
Open in RPKI / ROA validator Guide
Warning
17 of 107 announced prefixes have no IRR route object: 207.192.187.0/24, 2404:ae00:ffff::/48, 2404:ae00:ff87::/48, 2404:ae00::/48, 2404:ae00:15::/48 (+12).

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 AS45474 in your RIR’s IRR database (or RADB).
```
route: 207.192.187.0/24
origin: AS45474

route6: 2404:ae00:ffff::/48
origin: AS45474

route6: 2404:ae00:ff87::/48
origin: AS45474
```
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 3 of 107 announced prefixes have no ROA (RPKI not found): 207.192.148.0/24, 207.192.186.0/24, 207.192.187.0/24.

Pass: AS45474 announces 89 IPv4 and 18 IPv6 prefixes.
Warning: 3 of 107 announced prefixes have no ROA (RPKI not found): 207.192.148.0/24, 207.192.186.0/24, 207.192.187.0/24.
Info: 104 of 107 announced prefixes are RPKI valid.
Warning: 17 of 107 announced prefixes have no IRR route object: 207.192.187.0/24, 2404:ae00:ffff::/48, 2404:ae00:ff87::/48, 2404:ae00::/48, 2404:ae00:15::/48 (+12).
Info: 88 upstreams and peers, 30 downstream networks seen.

Holder	NEXUSGUARD-AS-AP - Nexusguard Pte. Ltd.
IPv4 prefixes	89
IPv6 prefixes	18
RPKI	104 valid · 3 not found
Without IRR route object	17
Downstream networks	30

Routes to fix

Prefix	RPKI
207.192.148.0/24	No ROA
207.192.186.0/24	No ROA
207.192.187.0/24	No ROA

Upstreams and peers seen to the left 88

AS6453 TATA Communications Ltd AS3257 GTT AS6461 Zayo AS1299 Arelion (Twelve99) AS2914 NTT Global IP Network AS3491 PCCW Global AS174 Cogent Communications, Inc. AS6939 Hurricane Electric AS4657 StarHub AS4657 AS3356 Lumen AS3356 AS13786 Seaborn AS4637 Telstra (International)

Announced prefixes 107

27.126.194.0/24 27.126.195.0/24 27.126.199.0/24 27.126.200.0/24 27.126.201.0/24 27.126.202.0/24 27.126.203.0/24 27.126.205.0/24 27.126.206.0/24 27.126.208.0/24 27.126.210.0/24 27.126.211.0/24 27.126.212.0/24 27.126.215.0/24 27.126.216.0/24 27.126.217.0/24 27.126.219.0/24 27.126.225.0/24 27.126.226.0/24 27.126.231.0/24 27.126.233.0/24 27.126.234.0/24 27.126.235.0/24 27.126.236.0/24 27.126.237.0/24 27.126.238.0/24 27.126.239.0/24 27.126.240.0/24 27.126.241.0/24 27.126.242.0/24 27.126.245.0/24 27.126.246.0/24 27.126.247.0/24 27.126.248.0/24 27.126.249.0/24 27.126.250.0/24 27.126.251.0/24 27.126.252.0/24 27.126.253.0/24 27.126.254.0/24 45.116.40.0/24 45.116.41.0/24 45.116.42.0/24 45.116.43.0/24 74.52.5.0/24 103.3.24.0/24 103.3.26.0/24 103.3.27.0/24 113.21.194.0/24 113.21.199.0/24 113.21.200.0/24 113.21.202.0/24 113.21.204.0/24 113.21.205.0/24 113.21.206.0/24 113.21.208.0/24 113.21.213.0/24 113.21.214.0/24 113.21.215.0/24 113.21.217.0/24 113.21.218.0/24 113.21.219.0/24 113.21.220.0/24 113.21.223.0/24 122.11.181.0/24 122.11.183.0/24 122.11.184.0/24 122.11.185.0/24 122.11.186.0/24 167.179.206.0/24 167.179.207.0/24 180.233.160.0/24 180.233.161.0/24 180.233.165.0/24 180.233.167.0/24 180.233.171.0/24 180.233.172.0/24 180.233.174.0/24 180.233.175.0/24 180.233.176.0/24 180.233.177.0/24 180.233.182.0/24 180.233.184.0/24 180.233.187.0/24 180.233.190.0/24 180.233.191.0/24 207.192.148.0/24 207.192.186.0/24 207.192.187.0/24 2404:ae00:10::/48 2404:ae00:11::/48 2404:ae00:12::/48 2404:ae00:13::/48 2404:ae00:14::/48 2404:ae00:15::/48 2404:ae00:17::/48 2404:ae00:18::/48 2404:ae00:19::/48 2404:ae00:3266::/48 2404:ae00:3638::/48

Showing the first 100.

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

Open in ASN & BGP prefix lookup

Registration Found at rdap.apnic.net.

Pass: Found at rdap.apnic.net.

Name	NEXUSGUARD-AS-AP
Handle	AS45474
Range	AS45474
Country	SG
Status	active
Registered	2026-01-08T07:45:23Z
Last changed	2026-01-08T07:47:09Z
Abuse contact	abuse@nexusguard.com

Allocation

Registry (RIR)	APNIC
Country	Singapore (SG)
Delegated on	2008-10-15
Status	Allocated
Delegated range	AS45474

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	Nexusguard Pte. Ltd.	peering@nexusguard.com
administrative, technical	Nexusguard Pte Ltd administrator	abuse@nexusguard.com
abuse	IRT-NEXUSGUARD-SG	abuse@nexusguard.com

Source: https://rdap.apnic.net/autnum/45474. Registration data from rdap.apnic.net, shown under its terms of use (terms): not for marketing or bulk collection.

Open in WHOIS / RDAP lookup

PeeringDB No public NOC, policy or technical contact.

Pass: AS45474 is in PeeringDB as Nexusguard.
Info: Peering policy: Selective.
Info: Present at 9 internet exchanges with 11 ports (1T in total).
Warning: No public NOC, policy or technical contact.

Network	Nexusguard (Nexusguard)
AS number	AS45474
Type	Network Services, Global
Website	https://www.nexusguard.com/
IRR as-set	AS45474:AS-NEXUSGUARD
Prefixes (IPv4 / IPv6)	1500 / 200
Traffic	Mostly Inbound
Peering policy	Selective
Locations	Preferred
Ratio required	No
Contracts	Not Required
Last updated	2026-01-19

Source: PeeringDB. Results are cached for an hour.

Open in PeeringDB lookup