Home ASN LookupAS204997

AS204997 FIRSTBYTE-AS FIRST SERVER LIMITED

🇬🇧

Org handle: ORG-FSL27-RIPE

RIPE NCCallocated

Announced Prefixes (BGP)

80total

64 IPv416 IPv6

IPv4 Addresses

Allocated (RIR)15,104

Announced (BGP)16,384

IPv6 Addresses

Allocated (RIR)7.2×10²⁴

Announced (BGP)1.9×10²⁵

Prefix Limit (IPv4)

200

Prefix Limit (IPv6)

Country

🇬🇧 GB

RIR

RIPE NCC

Status

allocated

Allocated

2017-11-22

Announced Prefixes

(BGP)80

Prefix	RPKI	IRR	Last Seen
45.144.64.0/24	Valid	RIPE	2026-10-11
45.144.65.0/24	Valid	RIPE	2026-10-11
45.144.66.0/24	Valid	RIPE	2026-10-11
45.144.67.0/24	Valid	RIPE	2026-10-11
46.17.104.0/24	Valid	RIPE	2026-10-11
91.217.81.0/24	Valid	RIPE	2026-10-11
104.128.132.0/24	Valid	RIPE	2026-10-11
104.128.136.0/24	Valid	RIPE	2026-10-11
104.128.137.0/24	Valid	RIPE	2026-10-11
104.128.140.0/24	Valid	RIPE	2026-10-11

1-10 of 80

1 / 8

Allocated Prefixes

(RIR)65

Prefix	Country	RIR	Status
45.144.64.0/24	🇷🇺 RU	RIPE	assigned
45.144.65.0/24	🇷🇺 RU	RIPE	assigned
45.144.66.0/24	🇷🇺 RU	RIPE	assigned
45.144.67.0/24	🇷🇺 RU	RIPE	assigned
46.17.104.0/24	🇷🇺 RU	RIPE	assigned
91.217.81.0/24	🇷🇺 RU	RIPE	assigned
104.128.132.0/24	🇷🇺 RU	RIPE	assigned
104.128.136.0/24	🇷🇺 RU	RIPE	assigned
104.128.137.0/24	🇷🇺 RU	RIPE	assigned
104.128.140.0/24	🇷🇺 RU	RIPE	assigned

1-10 of 65

1 / 7

All 80 announced prefixes of AS204997 →

BGP Neighbours

(seen in AS paths)

Upstreams (1)

Networks AS204997 hands its own prefixes to: transit providers, or peers at an exchange.

AS50113SuperServersDatacenter FIRST SERVER LIMITED81

Transfer History

Registry transfers of AS204997 between organisations.

AS204997Transfer · 2022-11-11
Network Management Ltd
RIPE NCC
→
FIRST SERVER LIMITED
RIPE NCC
AS204997Transfer · 2021-04-08
NTX Technologies s.r.o.
RIPE NCC
→
Network Management Ltd
RIPE NCC
AS204997Transfer · 2020-09-18
ALINARA GROUP LTD
RIPE NCC
→
NTX Technologies s.r.o.
RIPE NCC

Date	Resource	From	To	Type
2022-11-11	AS204997	Network Management Ltd RIPE NCC	FIRST SERVER LIMITED RIPE NCC	Transfer
2021-04-08	AS204997	NTX Technologies s.r.o. RIPE NCC	Network Management Ltd RIPE NCC	Transfer
2020-09-18	AS204997	ALINARA GROUP LTD RIPE NCC	NTX Technologies s.r.o. RIPE NCC	Transfer

ASPA

No ASPA

Abuse Contact

External Links

RIPE 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 AS204997 should publish an ASPA object
IPv4 transfers in the RIPE NCC 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/204997

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

curl -s "https://api.ipctl.io/v1/asn/204997" | jq