Home ASN LookupAS400308

AS400308 ZY - Zyberz LLC

🇺🇸

ARINassigned

Announced Prefixes (BGP)

10total

10 IPv40 IPv6

IPv4 Addresses

Allocated (RIR)768

Announced (BGP)2,560

IPv6 Addresses

Allocated (RIR)3×10²⁶

Announced (BGP)0

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

🇺🇸 US

RIR

ARIN

Status

assigned

Allocated

2026-02-20

Routing hygiene

Score 90/100 · High risk

RPKI ROA coverage

13 prefixes RPKI invalid

IRR route objects

14 prefixes registered for another origin

Hijack signals

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

Upstreams

diversity 0/100

100% of announced prefixes (14 of 14) have no valid ROA, 13 of them RPKI invalid
Announces 11 prefixes that RPKI assigns to another network (possible hijack or misconfiguration)
100% of announced prefixes (14 of 14) have no IRR route object for this ASN
Only one upstream seen in the AS paths of its routes

Based on 14 announced prefixes, updated daily (2026-10-19). How the score works · RPKI explained

Announced Prefixes

(BGP)10

Prefix	RPKI	IRR	Last Seen
16.216.19.0/24MOAS	Invalid	-	-
16.216.103.0/24	Invalid	-	-
16.216.110.0/24	No ROA	-	-
16.217.113.0/24MOAS	Invalid	-	-
31.56.71.0/24MOAS	Invalid	-	-
31.59.230.0/24	Invalid	-	-
31.77.247.0/24MOAS	Invalid	-	-
165.49.255.0/24	Invalid	-	-
192.25.206.0/24	Invalid	-	-
216.122.120.0/24MOAS	Invalid	-	-

Allocated Prefixes

(RIR)4

Prefix	Country	RIR	Status
23.149.84.0/24	🇺🇸 US	ARIN	allocated
31.77.247.0/24	🇪🇺 EU	RIPE	assigned
165.49.255.0/24	🇿🇦 ZA	AFRINIC	assigned
2602:f44e::/40	🇺🇸 US	ARIN	allocated

All 10 announced prefixes of AS400308 →

BGP Neighbours

(seen in AS paths)

Upstreams (1)

Networks AS400308 hands its own prefixes to: transit providers, or peers at an exchange.

AS29752Zenlayer10

ASPA

No ASPA

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
ASPA explainedWhy AS400308 should publish an ASPA object
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/400308

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

curl -s "https://api.ipctl.io/v1/asn/400308" | jq