Home Prefix Lookup203.122.128.0/18

203.122.128.0/18 - Symbio Networks (AS38333)

IPv4APNICallocatedAS38333SYMBIO-AS-AU-AP - Symbio NetworksNo ROA

CIDR

203.122.128.0/18

IP Version

IPv4

Addresses

16.3K

Mask

/18 (255.255.192.0)

Country

🇦🇺 Australia

City

Sydney

RIR

APNIC

Status

allocated

Allocated

2002-09-10

Announced BGP Routes

1 of 1 route

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
203.122.128.0/18	AS38333 SYMBIO-AS-AU-AP - Symbio Networks	No ROA	APNIC	2026-10-12

More-Specific Announcements

4 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
203.122.128.0/20	AS38333 SYMBIO-AS-AU-AP - Symbio Networks	No ROA	-	2026-10-12
203.122.144.0/20	AS38333 SYMBIO-AS-AU-AP - Symbio Networks	No ROA	-	2026-10-12
203.122.160.0/20	AS38333 SYMBIO-AS-AU-AP - Symbio Networks	No ROA	-	2026-10-12
203.122.176.0/20	AS38333 SYMBIO-AS-AU-AP - Symbio Networks	No ROA	-	2026-10-12

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS38333	APNIC	MAINT-MYNETFONELIMITED-AU	2016-10-06
AS45510	Other IRR	MAINT-AS38195	2023-11-13

Origin ASN

AS38333

SYMBIO-AS-AU-AP - Symbio Networks

Related Prefixes

More prefixes of AS38333

All prefixes of AS38333 →

Geolocation

Country🇦🇺AustraliaAU

RegionNew South Wales

CitySydney

Coordinates-33.8748, 151.2070 ↗

Learn more

RPKI and ROAs explainedWhat RPKI valid, invalid and no ROA mean
RPKI validatorCheck ROA coverage for any prefix or ASN
What is BGP?How prefixes are announced and routed
More-specific prefixesGlossary: covering and more-specific routes
IPv4 transfers in the APNIC regionWho bought and sold address space recently

API

Open

GEThttps://api.ipctl.io/v1/prefix/203.122.128.0/18

Returns prefix allocation, BGP routes, and more-specific subnets.

curl -s "https://api.ipctl.io/v1/prefix/203.122.128.0/18" | jq

External Links

RIPEstat