Home Prefix Lookup203.113.128.0/20

203.113.128.0/20 - BGP Prefix

IPv4APNICassignedNo ROA

CIDR

203.113.128.0/20

IP Version

IPv4

Addresses

Mask

/20 (255.255.240.0)

Country

🇻🇳 Vietnam

City

Hanoi

RIR

APNIC

Status

assigned

Allocated

Announced BGP Routes

0 of 0 routes

RPKI:

IRR:

Swipe sideways to see all columns →

Prefix	Origin AS	RPKI	IRR	Last Seen
This prefix is not announced as a whole. Parts of it are announced as more-specific prefixes, see below.

Related Announcements

1 less-specific, 9 more-specific announcements

Prefix	Origin AS	RPKI	IRR	Last Seen
203.113.128.0/18	AS7552 VIETEL-AS-AP - Viettel Group	No ROA	-	2026-10-12
203.113.128.0/22	AS7552 VIETEL-AS-AP - Viettel Group	Valid	-	2026-10-12
203.113.130.0/23	AS7552 VIETEL-AS-AP - Viettel Group	Valid	-	2026-10-12
203.113.132.0/22	AS7552 VIETEL-AS-AP - Viettel Group	Valid	-	2026-10-12
203.113.134.0/23	AS7552 VIETEL-AS-AP - Viettel Group	Valid	-	2026-10-12
203.113.135.0/24	AS7552 VIETEL-AS-AP - Viettel Group	Valid	-	2026-10-12
203.113.136.0/22	AS7552 VIETEL-AS-AP - Viettel Group	Valid	-	2026-10-12
203.113.136.0/24	AS7552 VIETEL-AS-AP - Viettel Group	Valid	-	2026-10-12
203.113.138.0/23	AS7552 VIETEL-AS-AP - Viettel Group	Valid	-	2026-10-12
203.113.140.0/22	AS7552 VIETEL-AS-AP - Viettel Group	Valid	-	2026-10-12

RPKI ROAs

Prefix	Origin	Max Length	Trust Anchor
203.113.128.0/19	AS7552	/24	apnic
203.113.128.0/19	AS24086	/24	apnic
203.113.128.0/19	AS38731	/24	apnic

IRR Route Objects

Origin	Registry	Maintainer	Modified
AS38731	APNIC	MAINT-VN-VIETEL	2025-08-27
AS7552	APNIC	MAINT-VN-VIETEL	2023-02-10
AS24086	APNIC	MAINT-VN-VIETEL	2025-08-27
AS7552	Other IRR	MAINT-AS4637	2023-11-13

More Specific Prefixes

Prefix	AS	Country	Status
203.113.128.0/24		🇻🇳VN	assigned
203.113.129.0/24		🇻🇳VN	assigned
203.113.130.32/28		🇻🇳VN	assigned
203.113.130.48/28		🇻🇳VN	assigned
203.113.130.96/29		🇻🇳VN	assigned
203.113.130.104/29		🇻🇳VN	assigned
203.113.130.112/28		🇻🇳VN	assigned
203.113.130.128/29		🇻🇳VN	assigned
203.113.130.152/29		🇻🇳VN	assigned
203.113.130.176/29		🇻🇳VN	assigned
203.113.130.192/27		🇻🇳VN	assigned
203.113.130.224/29		🇻🇳VN	assigned
203.113.130.232/29		🇻🇳VN	assigned
203.113.130.240/28		🇻🇳VN	assigned
203.113.130.240/29		🇻🇳VN	assigned
203.113.130.248/29		🇻🇳VN	assigned
203.113.131.0/24		🇻🇳VN	assigned
203.113.132.0/28		🇻🇳VN	assigned
203.113.132.8/29		🇻🇳VN	assigned
203.113.132.32/27		🇻🇳VN	assigned
203.113.132.96/29		🇻🇳VN	assigned
203.113.132.104/29		🇻🇳VN	assigned
203.113.132.112/28		🇻🇳VN	assigned
203.113.132.160/29		🇻🇳VN	assigned
203.113.132.176/29		🇻🇳VN	assigned
203.113.132.184/29		🇻🇳VN	assigned
203.113.132.192/29		🇻🇳VN	assigned
203.113.132.200/29		🇻🇳VN	assigned
203.113.132.208/28		🇻🇳VN	assigned
203.113.132.224/29		🇻🇳VN	assigned
203.113.132.232/29		🇻🇳VN	assigned
203.113.132.240/28		🇻🇳VN	assigned
203.113.133.0/24		🇻🇳VN	assigned
203.113.134.16/29		🇻🇳VN	assigned
203.113.134.24/29		🇻🇳VN	assigned
203.113.134.32/29		🇻🇳VN	assigned
203.113.134.72/29		🇻🇳VN	assigned
203.113.134.128/29		🇻🇳VN	assigned
203.113.135.0/24	AS7552	🇻🇳VN	assigned
203.113.136.0/24	AS7552	🇻🇳VN	assigned
203.113.137.0/24		🇻🇳VN	assigned
203.113.138.0/30		🇻🇳VN	assigned
203.113.138.64/26		🇻🇳VN	assigned
203.113.138.224/28		🇻🇳VN	assigned
203.113.138.240/28		🇻🇳VN	assigned
203.113.139.0/24		🇻🇳VN	assigned
203.113.140.0/24		🇻🇳VN	assigned
203.113.141.0/26		🇻🇳VN	assigned
203.113.141.128/25		🇻🇳VN	assigned
203.113.142.0/24		🇻🇳VN	assigned
203.113.142.84/30		🇻🇳VN	assigned
203.113.142.88/30		🇻🇳VN	assigned
203.113.142.96/30		🇻🇳VN	assigned
203.113.143.0/25		🇻🇳VN	assigned
203.113.143.128/29		🇻🇳VN	assigned
203.113.143.136/29		🇻🇳VN	assigned
203.113.143.144/28		🇻🇳VN	assigned
203.113.143.160/29		🇻🇳VN	assigned
203.113.143.168/29		🇻🇳VN	assigned
203.113.143.176/29		🇻🇳VN	assigned
203.113.143.184/29		🇻🇳VN	assigned
203.113.143.192/29		🇻🇳VN	assigned
203.113.143.200/29		🇻🇳VN	assigned
203.113.143.208/28		🇻🇳VN	assigned
203.113.143.216/29		🇻🇳VN	assigned
203.113.143.224/28		🇻🇳VN	assigned
203.113.143.232/29		🇻🇳VN	assigned
203.113.143.240/28		🇻🇳VN	assigned

Related Prefixes

Covering prefix

203.113.128.0/18AS7552

Geolocation

Country🇻🇳VietnamVN

RegionHanoi

CityHanoi

Coordinates21.0278, 105.8340 ↗

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/203.113.128.0/20

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

curl -s "https://api.ipctl.io/v1/prefix/203.113.128.0/20" | jq

External Links

RIPEstat