$ query “AS51043” --type=asn → 1 result(s)

AS51043 · ASPIRE01

Aspire Technology Solutions Ltd

AS51043 belongs to Aspire Technology Solutions Ltd and is a residential access provider, registered in the United Kingdom since 2010. The system announces a respectable 47 616 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to the United Kingdom, with additional presence in the United States.

  • Top 5% — Top 5% of all autonomous systems by reach and degree

Basic Information

Country
🇬🇧 United Kingdom
Category
Internet Service Provider
Network Role
Access Provider
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
May 21, 2010
Last Changed
March 04, 2026
Last Seen
August 26, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
21 / 20
IPv6 Prefixes (raw / aggregated)
1 / 1
IPv4 Addresses
47 616
Largest IPv4 Prefix
/18 (16 384 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇬🇧 United Kingdom (73 472 IPs), 🇺🇸 United States (256 IPs)
Prefix Changed
June 02, 2026

Reputation

Reputation
Pristine — 0 flagged IPs

Connectivity Summary

Upstream Providers
4 upstreams providing transit
Peers
95 networks exchanging traffic without transit
Downstream Customers
7 downstreams buying transit
Unclassified
3 unclassified BGP neighbors
Degree
109 unique BGP neighbors
Reach
7 networks in customer cone

Upstream Providers (4)

  • AS174 — COGENT (Tier-1 transit)
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS2914 — NTT-DATA-2914 (Tier-1 transit)
  • AS215638 — AS-CILIX-LIMITED

Prefix Lists

IPv4 Prefixes (21 total)

  • 159.242.64.0/18 (16 384 addresses (/18 prefix))
  • 148.253.160.0/19 (8 192 addresses (/19 prefix))
  • 83.98.32.0/19 (8 192 addresses (/19 prefix))
  • 194.238.80.0/20 (4 096 addresses (/20 prefix))
  • 5.22.136.0/21 (2 048 addresses (/21 prefix))
  • 178.23.128.0/21 (2 048 addresses (/21 prefix))
  • 109.207.16.0/21 (2 048 addresses (/21 prefix))
  • 185.59.180.0/22 (1 024 addresses (/22 prefix))
  • 185.151.226.0/23 (512 addresses (/23 prefix))
  • 212.47.86.0/23 (512 addresses (/23 prefix))
  • 82.197.74.0/24 (256 addresses (/24 prefix))
  • 77.73.12.0/24 (256 addresses (/24 prefix))
  • 77.73.9.0/24 (256 addresses (/24 prefix))
  • 185.151.224.0/24 (256 addresses (/24 prefix))
  • 185.173.67.0/24 (256 addresses (/24 prefix))
  • 193.161.8.0/24 (256 addresses (/24 prefix))
  • 193.161.11.0/24 (256 addresses (/24 prefix))
  • 45.88.98.0/24 (256 addresses (/24 prefix))
  • 194.247.49.0/24 (256 addresses (/24 prefix))
  • 212.36.127.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (1 total)

  • 2a00:ed40::/32