Skip to content
thenetworkery

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

14.207.251.0/24 · 

curl -s "https://thenetworkery.com/api/v1/network-report?query=14.207.251.0%2F24"
JSON Docs

Warning: 14.207.251.0/24 is announced by AS45458 (SBN-AWN-AS-02-AP). 1 warning

Announced as14.207.251.0/24
Origin ASAS45458 SBN-AWN-AS-02-AP
HolderADVANCED WIRELESS NETWORK COMPANY LIMITED
AllocationAPNIC, Thailand (TH), allocated 2010-09-20
Size256 addresses
Abuse contactabuseIPv4@ais.co.th

What to fix

  1. Warning

    Reverse DNS is not delegated for 14.207.251.0/24, so its addresses have no PTR records.

    Mail receivers look up the PTR of the sending address and reject or spam-score mail without one; traceroutes and logs show bare numbers.

    Fix: Create the reverse zones (domain objects for in-addr.arpa or ip6.arpa) at your RIR, pointing at your nameservers, or ask your provider to set PTR records.

    Open in DNS lookup

Checks

Routing and RPKI Announced as 14.207.251.0/24 by AS45458.
  • Pass: Announced as 14.207.251.0/24 by AS45458.
  • Pass: 14.207.251.0/24 from AS45458 is RPKI valid.
  • Pass: Seen by 99% of RIPE RIS peers.
  • Info: The ROA 14.207.128.0/17 AS45458 allows announcements up to /24.
Route14.207.251.0/24
Origin ASAS45458 SBN-AWN-AS-02-AP - SBN-ISP/AWN-ISP and SBN-NIX/AWN-NIX RPKI valid
IRR route objectsAPNIC
Visibility (RIS peers)317 / 319
First seen2026-10-01
ROAs covering this prefix
ROA prefixMax lengthOrigin AS
14.207.128.0/17 /24 AS45458
14.207.0.0/16 /17 AS45629
14.207.0.0/16 /17 AS45758

Source: RIPEstat (RIPE NCC RIS, Routinator)

Open in ASN & BGP prefix lookup
Reverse DNS Reverse DNS is not delegated for 14.207.251.0/24, so its addresses have no PTR records.
  • Warning: Reverse DNS is not delegated for 14.207.251.0/24, so its addresses have no PTR records.
Reverse zones 1
ZoneNameservers
251.207.14.in-addr.arpa Not delegated
Open in DNS lookup
Registration Found at rdap.apnic.net.
  • Pass: Found at rdap.apnic.net.
NameAWN-CO-LTD-TH
Handle14.207.128.0 - 14.207.255.255
Range14.207.128.0 – 14.207.255.255
CountryTH
Statusactive
Registered2026-09-15T23:46:20Z
Last changed2026-11-11T22:11:21Z
Abuse contactabuseIPv4@ais.co.th
Allocation
Registry (RIR)APNIC
CountryThailand (TH)
Delegated on2010-09-20
StatusAllocated
Delegated range14.207.0.0/16 (14.207.0.0 – 14.207.255.255)

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

Contacts
RoleNameEmail
technical, administrative ADVANCED WIRELESS NETWORK COMPANY LIMITED administ abuseIPv4@ais.co.th
registrant ADVANCED WIRELESS NETWORK COMPANY LIMITED abuseIPv4@ais.co.th
abuse IRT-AWN-CO-LTD-TH abuseIPv4@ais.co.th

Source: https://rdap.apnic.net/ip/14.207.251.0/24. 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: AS45458 is in PeeringDB as Advanced Wireless Network Co. Ltd.(Enterprise/NIX).
  • Info: Peering policy: Selective.
  • Info: Present at 3 internet exchanges with 4 ports (400G in total).
  • Warning: No public NOC, policy or technical contact.

About the network that announces this space, so not in the fix list.

NetworkAdvanced Wireless Network Co. Ltd.(Enterprise/NIX)
AS numberAS45458
TypeCable/DSL/ISP, Regional
Websitehttp://www.ais.co.th
IRR as-setAS45458:AS-AWN-NIX
Prefixes (IPv4 / IPv6)9000 / 6000
Traffic1-5Tbps, Mostly Inbound
Peering policySelective
LocationsNot Required
Ratio requiredNo
ContractsNot Required
Last updated2026-07-07

Source: PeeringDB. Results are cached for an hour.

Open in PeeringDB lookup