AS8851 — EDGE GCI Network Solutions Limited

Network type: residential

AS8851 announces 478 IPv4 prefixes covering 417,792 addresses and 6 IPv6 prefixes.

About this network

EDGE / "ta GCI Com" is GCI Network Solutions Limited, the UK managed-services and business-connectivity operator that now trades as Nasstar. The handle is a fossil of the Edge Telecom lineage the AS came in on.

What it's used for

• Business connectivity and managed IT for UK corporate and public-sector customers. The sampled reverse names are unmistakably B2B access rather than consumer broadband: ecc-customer.router.eclipse.net.uk (a customer edge router) and static-DSL naming in the uk.dsl.sta.u.tv zone — note the sta, for static.

Notable

• The inventory reads as an accretion of absorbed UK ISPs. The reverse-DNS zones carry the names of Eclipse Internet and UTV Internet (u.tv), two operators whose business bases were rolled up through the KCOM/GCI/Nasstar chain of acquisitions — the addresses moved but the zones never got renamed.
• Announced space is highly fragmented — dozens of /24s and /22s spread across several unrelated legacy RIPE ranges (62.x, 86.54.x, 194.46.x, 217.154.x, 213.218.x). That scatter is inherited from the acquisitions, not assembled.
• Card the network, not the brand: a name-only read of "GCI" or an eyeball-ISP reverse name would file this as consumer broadband. The static-DSL and customer-router naming says otherwise.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 37.98.144.0/23
• 37.98.147.0/24
• 37.98.148.0/23
• 37.98.150.0/24
• 37.252.24.0/24
• 37.252.29.0/24
• 62.164.131.0/24
• 62.164.132.0/22
• 62.164.136.0/22
• 62.164.140.0/24
• 62.164.145.0/24
• 62.164.146.0/23
• 62.164.152.0/24
• 62.164.169.0/24
• 62.164.171.0/24
• 62.164.176.0/24
• 62.164.178.0/23
• 62.164.180.0/24
• 62.164.183.0/24
• 62.164.184.0/24
• 62.164.186.0/23
• 62.164.188.0/22
• 62.164.196.0/24
• 62.164.199.0/24
• 62.169.150.0/24
• 62.169.154.0/24
• 77.93.128.0/24
• 77.93.131.0/24
• 77.93.132.0/24
• 77.93.134.0/23
• 77.93.144.0/22
• 77.93.150.0/23
• 77.93.156.0/24
• 77.107.64.0/20
• 77.107.80.0/24
• 77.107.83.0/24
• 77.107.84.0/24
• 77.107.86.0/23
• 77.107.89.0/24
• 77.107.90.0/23
• 77.107.92.0/23
• 77.107.96.0/23
• 77.107.98.0/24
• 77.107.100.0/23
• 77.107.102.0/24
• 77.107.106.0/23
• 77.107.108.0/22
• 77.107.112.0/24
• 77.107.114.0/24
• 77.107.116.0/23
• 77.107.119.0/24
• 77.107.120.0/22
• 77.107.124.0/23
• 77.107.127.0/24
• 79.99.72.0/23
• 79.99.74.0/24
• 79.99.77.0/24
• 79.99.79.0/24
• 79.99.144.0/23
• 79.99.148.0/24
• 80.240.80.0/22
• 81.5.128.0/20
• 81.5.144.0/21
• 81.5.152.0/22
• 81.5.157.0/24
• 81.5.158.0/23
• 81.5.160.0/24
• 81.5.162.0/23
• 81.5.164.0/22
• 81.5.168.0/21
• 81.5.176.0/22
• 81.5.180.0/23
• 81.5.182.0/24
• 81.5.184.0/22
• 81.5.188.0/24
• 81.5.190.0/24
• 81.168.0.0/22
• 81.168.4.0/23
• 81.168.6.0/24
• 81.168.10.0/24
• 81.168.12.0/22
• 81.168.17.0/24
• 81.168.19.0/24
• 81.168.21.0/24
• 81.168.22.0/23
• 81.168.24.0/22
• 81.168.28.0/24
• 81.168.30.0/23
• 81.168.33.0/24
• 81.168.34.0/24
• 81.168.36.0/23
• 81.168.39.0/24
• 81.168.40.0/24
• 81.168.44.0/22
• 81.168.48.0/23
• 81.168.51.0/24
• 81.168.52.0/22
• 81.168.56.0/22
• 81.168.61.0/24
• 81.168.64.0/23

and 384 more.

Upstream networks

• AS6939 Hurricane Electric LLC
• AS3356 Level 3 Parent, LLC
• AS34549 meerfarbig GmbH & Co. KG
• AS33891 Core-Backbone GmbH
• AS50300 CustodianDC Limited
• AS24482 SG.GS
• AS48185 team.blue NV
• AS48362 Stadtwerke Feldkirch
• AS17639 Converge ICT Solutions Inc.
• AS3741 Dimension Data
• AS37100 SEACOM Limited
• AS37721 Virtual Technologies & Solutions
• AS50304 Blix Solutions AS
• AS6461 Zayo Bandwidth
• AS29169 GANDI SAS
• AS31500 Global Network Management Inc

Downstream networks

• AS29726 Vonage Holdings, Inc.
• AS31632 OAG Aviation WorldWide Limited

Adjacent networks

• AS6939 Hurricane Electric LLC
• AS3356 Level 3 Parent, LLC
• AS34549 meerfarbig GmbH & Co. KG
• AS33891 Core-Backbone GmbH
• AS24482 SG.GS
• AS48185 team.blue NV
• AS50300 CustodianDC Limited
• AS48362 Stadtwerke Feldkirch
• AS37721 Virtual Technologies & Solutions
• AS3741 Dimension Data
• AS37100 SEACOM Limited
• AS50304 Blix Solutions AS
• AS17639 Converge ICT Solutions Inc.
• AS6461 Zayo Bandwidth
• AS29169 GANDI SAS
• AS29726 Vonage Holdings, Inc.
• AS31632 OAG Aviation WorldWide Limited
• AS8897 KCOM Group Limited
• AS31500 Global Network Management Inc

Routing security

• RPKI: 345 valid, 0 invalid and 7 not-found announcements; 214 ROAs.
• ASPA: none published.
• IRR: 62% of announcements registered; 222 route objects.
• Listed in as-sets: AS-63529-AS-IMPORT-AS6939, AS-BSVE:AS-LINX-PEERS-1, AS-BSVE:AS-LINX-PEERS-2, AS-BSVE:AS-LIPEX-PEERS-1, AS-BSVE:AS-LIPEX-PEERS-2, AS-CTBC-TOOLS-11, AS-DDITS:AS-PEERS, AS-DOCLER:AS-PEERS, AS-EDGE, AS-EPICFAIL, AS-FORTE-TELECOM-CUSTOMER-TRIAL, AS-GBLXEU, AS-GCICOM, AS-HURRICANE, AS-HURRICANEV6, AS-HYTRON, AS-HYTRON, AS-HYTRONNETWORK, AS-INWEB, AS-ITXBR1, AS-LIQUID-LINXPEERS, AS-LONAP-CONNECTED, AS-LONAP-MLP, AS-LONAP-MLP-V6, AS-MANDA-LINX-PEERS-V4.

Internet exchanges

• LINX LON1 — London, United Kingdom
• London Network Access Point — London, United Kingdom
• LINX Manchester — Manchester, United Kingdom