Home ASN LookupAS17756

AS17756 AUSPOST Australia Post

🇦🇺

Org handle: ORG-APC1-AP

Australia Post

APNICallocated

Announced Prefixes (BGP)

24total

24 IPv40 IPv6

IPv4 Addresses

Allocated (RIR)67,840

Announced (BGP)137,728

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)0

Prefix Limit (IPv4)

100

Prefix Limit (IPv6)

Country

🇦🇺 AU

RIR

APNIC

Status

allocated

Allocated

2001-05-21

Announced Prefixes

(BGP)24

Prefix	RPKI	IRR	Last Seen
155.144.0.0/16	No ROA	Other IRR	2026-10-11
155.144.0.0/17	No ROA	Other IRR	2026-10-11
155.144.16.0/22	No ROA	Other IRR	2026-10-11
155.144.24.0/24	No ROA	Other IRR	2026-10-11
155.144.25.0/24	No ROA	Other IRR	2026-10-11
155.144.26.0/24	No ROA	Other IRR	2026-10-11
155.144.27.0/24	No ROA	Other IRR	2026-10-11
155.144.47.0/24	No ROA	Other IRR	2026-10-11
155.144.50.0/23	No ROA	-	2026-10-11
155.144.50.0/24	No ROA	Other IRR	2026-10-11

1-10 of 24

1 / 3

Allocated Prefixes

(RIR)3

Prefix	Country	RIR	Status
155.144.0.0/16	🇦🇺 AU	APNIC	allocated
202.20.8.0/21	🇦🇺 AU	APNIC	allocated
203.171.5.0/24	🇦🇺 AU	APNIC	assigned

All 24 announced prefixes of AS17756 →

BGP Neighbours

(seen in AS paths)

Upstreams (2)

Networks AS17756 hands its own prefixes to: transit providers, or peers at an exchange.

AS32787Akamai Technologies21
AS2764AAPT Limited3

Transfer History

Registry transfers of AS17756 between organisations.

AS17756Transfer · 2019-09-04
SingTel Optus Pty Ltd
🇦🇺 AU APNIC
→
Australian Postal Corporation
🇦🇺 AU APNIC

Date	Resource	From	To	Type
2019-09-04	AS17756	SingTel Optus Pty Ltd 🇦🇺 AU APNIC	Australian Postal Corporation 🇦🇺 AU APNIC	Transfer

ASPA

No ASPA

External Links

APNIC Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS17756 should publish an ASPA object
IPv4 transfers in the APNIC regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/17756

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/17756" | jq