AS20712 — AS20712 Andrews & Arnold Ltd

Network type: residential

AS20712 announces 94 IPv4 prefixes covering 148,736 addresses and 15 IPv6 prefixes.

About this network

AS20712 is operated by Andrews & Arnold Ltd, a UK-based internet service provider.

What it's used for

• The address space carries residential broadband traffic, evidenced by registrant netnames like UK-AA-20020403 and UK-AA-20030203 associated with AAISP Support.
• The AS announces 144,640 IPv4 addresses across 103 prefixes and 44 IPv6 prefixes, while maintaining 106 observed neighbours; this high address-to-neighbour ratio indicates an access network serving end-users rather than a transit provider.

Notable

• All sampled registrants are Andrews & Arnold Ltd, consistent with the AS holder, confirming the space is owned and operated by the same entity.
• The inventory consists of large blocks in the 81.2.0.0/16, 81.187.0.0/16, 90.155.0.0/16, and 217.169.0.0/16 ranges, reflecting a substantial domestic footprint.
• Reverse DNS entries include generic reverse-dns.uk pointers and specific hostnames like bcast.zanker.uk, typical of a large-scale residential ISP managing customer-facing addresses.

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

Announced prefixes

• 5.172.160.0/20
• 44.30.117.0/24
• 44.31.91.0/24
• 44.31.166.0/24
• 44.31.241.0/24
• 44.32.156.0/24
• 45.88.21.0/24
• 45.88.23.0/24
• 45.89.37.0/24
• 45.89.39.0/24
• 45.92.3.0/24
• 45.129.89.0/24
• 45.129.91.0/24
• 45.134.249.0/24
• 45.134.251.0/24
• 45.135.9.0/24
• 45.135.11.0/24
• 45.136.217.0/24
• 45.136.219.0/24
• 45.138.77.0/24
• 45.138.79.0/24
• 45.139.33.0/24
• 45.139.35.0/24
• 45.139.229.0/24
• 45.139.231.0/24
• 45.140.69.0/24
• 45.140.71.0/24
• 45.140.134.0/24
• 45.140.215.0/24
• 45.141.49.0/24
• 45.141.51.0/24
• 45.142.205.0/24
• 45.142.207.0/24
• 45.144.157.0/24
• 45.144.159.0/24
• 51.146.73.0/24
• 51.194.130.0/24
• 81.2.64.0/18
• 81.187.0.0/19
• 81.187.32.0/21
• 81.187.40.0/23
• 81.187.43.0/24
• 81.187.44.0/22
• 81.187.48.0/20
• 81.187.64.0/19
• 81.187.112.0/20
• 81.187.129.0/24
• 81.187.130.0/23
• 81.187.132.0/22
• 81.187.136.0/21
• 81.187.144.0/20
• 81.187.160.0/19
• 81.187.192.0/18
• 90.155.0.0/18
• 90.155.64.0/19
• 90.155.96.0/20
• 91.190.97.0/24
• 91.190.105.0/24
• 91.200.61.0/24
• 91.208.66.0/24
• 91.240.176.0/24
• 91.242.172.0/24
• 91.244.239.0/24
• 93.187.168.0/24
• 94.116.12.0/22
• 94.116.32.0/22
• 94.116.152.0/22
• 94.116.184.0/22
• 94.116.196.0/22
• 94.116.236.0/22
• 94.194.88.0/22
• 109.205.152.0/22
• 109.205.156.0/24
• 176.110.118.0/24
• 176.123.222.0/24
• 178.211.150.0/24
• 178.238.144.0/20
• 185.6.132.0/23
• 188.191.132.0/22
• 188.220.10.0/24
• 188.220.192.0/24
• 188.220.206.0/24
• 188.220.217.0/24
• 188.221.11.0/24
• 188.221.23.0/24
• 188.221.98.0/24
• 188.221.189.0/24
• 192.67.4.0/24
• 192.150.92.0/24
• 194.4.172.0/22
• 194.60.203.0/24
• 194.62.124.0/24
• 194.70.3.0/24
• 217.169.0.0/19
• 2001:678:3c4::/48
• 2001:678:c40::/48
• 2001:67c:2bc::/48
• 2001:67c:1270::/48
• 2001:67c:2058::/48
• 2001:67c:2a40::/48

and 9 more.

Upstream networks

• AS1299 Arelion Sweden AB
• AS2914 NTT America, Inc.
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC
• AS34549 meerfarbig GmbH & Co. KG
• AS50304 Blix Solutions AS
• AS48185 team.blue NV
• AS48362 Stadtwerke Feldkirch
• AS50300 CustodianDC Limited
• AS17639 Converge ICT Solutions Inc.
• AS24482 SG.GS
• AS29075 IELO-LIAZO SERVICES SAS
• AS37721 Virtual Technologies & Solutions
• AS3741 Dimension Data
• AS12552 GlobalConnect AB
• AS12779 IT.Gate S.p.A.
• AS3216 PJSC "Vimpelcom"
• AS4637 Telstra Global
• AS37100 SEACOM Limited
• AS12703 Pulsant (Scotland) Ltd
• AS25091 IP-Max SA
• AS213241 TECHIT.BE SRL
• AS31500 Global Network Management Inc

Downstream networks

• AS48444 Internet Ltd
• AS48901 DSNET Ltd
• AS209669 Ashley Primo
• AS198219 Charlie Camilleri
• AS199165 Shibboleet Ltd
• AS215833 Ablative Consulting Ltd
• AS12290 Exonetric Consulting Ltd
• AS207754 James Colderwood
• AS47988 Charles Allom
• AS209600 Livefix Technical Solutions Group Limited
• AS201694 Rethink Technology Solutions Ltd
• AS211371 Telet Research (N.I) Limited
• AS62374 Andy Mace
• AS12613 Firebrick Limited
• AS200279 Thomas Douwes
• AS215768 Alex Haydock
• AS211431 Andrew Aubury
• AS206392 Hackworth Ltd
• AS204660 Tiger Technologies Limited
• AS29478 Karl Dyson
• AS43442 ProVu Communications Ltd

Adjacent networks

• AS1299 Arelion Sweden AB
• AS2914 NTT America, Inc.
• AS6939 Hurricane Electric LLC
• AS174 Cogent Communications, LLC
• AS34549 meerfarbig GmbH & Co. KG
• AS48444 Internet Ltd
• AS48901 DSNET Ltd
• AS50304 Blix Solutions AS
• AS209669 Ashley Primo
• AS50300 CustodianDC Limited
• AS24482 SG.GS
• AS17639 Converge ICT Solutions Inc.
• AS48362 Stadtwerke Feldkirch
• AS48185 team.blue NV
• AS29075 IELO-LIAZO SERVICES SAS
• AS37721 Virtual Technologies & Solutions
• AS198219 Charlie Camilleri
• AS12779 IT.Gate S.p.A.
• AS12552 GlobalConnect AB
• AS3741 Dimension Data
• AS3216 PJSC "Vimpelcom"
• AS4637 Telstra Global
• AS37100 SEACOM Limited
• AS215833 Ablative Consulting Ltd
• AS199165 Shibboleet Ltd

Internet exchanges

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