Home ASN LookupAS11421

AS11421 HYWG-BACKBONE - HYW

🇺🇸

ARINassignedASPA Published

Announced Prefixes (BGP)

15total

6 IPv49 IPv6

IPv4 Addresses

Allocated (RIR)768

Announced (BGP)1,536

IPv6 Addresses

Allocated (RIR)1.2×10²⁴

Announced (BGP)8.3×10²⁵

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

🇺🇸 US

RIR

ARIN

Status

assigned

Allocated

2026-03-17

Routing hygiene

Score 4/100 · Low risk

RPKI ROA coverage

93.3%

no RPKI invalid prefixes

IRR route objects

100%

no origin mismatches

Hijack signals

0 announced against others' ROAs, 0 own announced by others

Upstreams

diversity 77/100

7% of announced prefixes (1 of 15) have no valid ROA

Based on 15 announced prefixes, updated daily (2026-10-27). How the score works · RPKI explained

Announced Prefixes

(BGP)15

Prefix	RPKI	IRR	Last Seen
16.5.55.0/24	Valid	ARINOther IRR	-
23.154.164.0/24	Valid	ARIN	-
44.30.130.0/24MOAS	No ROA	Other IRR	-
87.86.22.0/24	Valid	Other IRRRIPE	-
87.86.87.0/24	Valid	Other IRR	-
104.247.211.0/24	Valid	ARINOther IRR	-
2602:f429:1::/48	Valid	-	-
2602:f429:2::/48	Valid	-	-
2602:f429:3::/48	Valid	-	-
2602:f429:20::/44	Valid	ARIN	-

1-10 of 15

1 / 2

Allocated Prefixes

(RIR)4

Prefix	Country	RIR	Status
23.154.164.0/24	🇺🇸 US	ARIN	allocated
87.86.22.0/24	🇬🇧 GB	RIPE	assigned
87.86.87.0/24	🇪🇺 EU	RIPE	assigned
2a14:7586:6116::/48	🇯🇵 JP	RIPE	assigned

All 15 announced prefixes of AS11421 →

Upstream Providers(8)

ASN	Name
AS6939	🇺🇸HURRICANE - Hurricane Electric LLC
AS20473	🇺🇸AS-VULTR - The Constant Company, LLC
AS40792	🇺🇸CYBERVERSE - CYBERVERSE
AS44324	🇺🇸MOEDOVE-AS MoeDove LLC
AS206069	🇬🇧CORNSEED Cornseed Limited
AS207529	🇬🇧NyanLoliNetwork NYANLOLI LTD
AS216211	🇺🇸CYBERVERSE-BACKBONE CYBERVERSE LLC
AS402298	🇺🇸HYWG-BACKBONE-AS - HYW GLOBAL LLC

Downstream Customers(4)

ASN	Name
AS151673	🇨🇳CHENXINYU-AS-AP Chen Xinyu
AS203309	🇨🇳CHOCO-AS Liangyi Ma
AS204921	🇬🇧YunZheng-Network zhenyun sun
AS210352	🇨🇳YijiaXu Yijia Xu

BGP Neighbours

(seen in AS paths)

Upstreams (6)

Networks AS11421 hands its own prefixes to: transit providers, or peers at an exchange.

AS206069CORNSEED Limited5
AS216211CYBERVERSE BACKBONE CYBERVERSE5
AS6939Hurricane Electric2
AS20473The Constant Company1
AS44324MOEDOVE1
AS207529NyanLoliNetwork NYANLOLI1

Downstreams (1)

Networks whose own prefixes AS11421 passes on: usually its customers.

AS151673CHENXINYU AP Chen Xinyu1

Other adjacent networks (2)

Adjacent to AS11421 in the transit part of AS paths: peers, providers or customers.

AS214731ETO Networks Limited1
AS402298HYW GLOBAL1

ASPA

Published8 upstreams, 4 downstreams

Authorized Upstream Providers

AS6939 AS20473 AS40792 AS44324 AS206069 AS207529 AS216211 AS402298

Expires 2026-10-29

Listed as Upstream Provider by

4 ASNs

View full ASPA details →

External Links

ARIN 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
How to run an ASPA checkVerify the upstream providers listed above
IPv4 transfers in the ARIN 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/11421

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

curl -s "https://api.ipctl.io/v1/asn/11421" | jq