Autonomous System details
AS13037
Zen Internet LTD — zen.co.uk
Summary
| Country |
 United Kingdom
|
| Organization | Zen Internet LTD |
| Domain | zen.co.uk |
| Number of IPv4 | 531,200 |
| Number of IPv6 | 6.3383× 1029 |
| AS Type | ISP |
| Registry | RIPE NCC |
| Allocated | September 20, 2002 (about 23 years ago) |
| Updated | August 02, 2023 (about 1 year ago) |
IP Ranges
AS13037 announces 37 IPv4 ranges and 3 IPv6 ranges.
That's a total of 531,200 IPv4 addresses and 6.3383× 1029 IPv6 addresses.
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 51.148.0.0/16 |
Zen Internet
|
65,536 | RIPE NCC | LEGACY |
| 51.155.0.0/16 |
ZEN20190122-DM-ZEN-ADSL16
|
65,536 | RIPE NCC | LEGACY |
| 62.3.64.0/18 |
ADSL
|
16,384 | RIPE NCC | ASSIGNED PA |
| 77.104.128.0/18 |
Zen Internet LTD
|
16,384 | RIPE NCC | ALLOCATED PA |
| 82.68.0.0/15 |
Zen Internet LTD
|
131,072 | RIPE NCC | ASSIGNED PA |
| 82.71.0.0/16 |
ADSL
|
65,536 | RIPE NCC | ASSIGNED PA |
| 88.97.0.0/18 |
ADSL
|
16,384 | RIPE NCC | ASSIGNED PA |
| 88.97.64.0/19 |
ZEN-PARTITION-CUSTOMER-NETWORKS-33
|
8,192 | RIPE NCC | ASSIGNED PA |
| 88.97.96.0/20 |
Zen Internet LTD
|
4,096 | RIPE NCC | ALLOCATED PA |
| 88.98.0.0/20 |
Zen Internet LTD
|
4,096 | RIPE NCC | ALLOCATED PA |
| 88.98.16.0/23 |
Zen Internet LTD
|
512 | RIPE NCC | ALLOCATED PA |
| 88.98.18.0/24 |
Zen Internet
|
256 | RIPE NCC | ASSIGNED PA |
| 88.98.21.0/24 |
Zen Internet LTD
|
256 | RIPE NCC | ALLOCATED PA |
| 88.98.22.0/23 |
Zen Internet LTD
|
512 | RIPE NCC | ALLOCATED PA |
| 88.98.24.0/21 |
Zen Internet
|
2,048 | RIPE NCC | LIR-PARTITIONED PA |
| 88.98.32.0/19 |
R.E.S.
|
8,192 | RIPE NCC | ASSIGNED PA |
| 88.98.64.0/19 |
Central Animal Pathology Laboratories
|
8,192 | RIPE NCC | ASSIGNED PA |
| 88.98.128.0/19 |
Zen Internet
|
8,192 | RIPE NCC | ASSIGNED PA |
| 88.98.160.0/21 |
Zen Internet
|
2,048 | RIPE NCC | ASSIGNED PA |
| 88.98.170.0/23 |
Zen Internet LTD
|
512 | RIPE NCC | ALLOCATED PA |
| 88.98.172.0/22 |
Zen Internet LTD
|
1,024 | RIPE NCC | ALLOCATED PA |
| 88.98.176.0/20 |
Zen Internet LTD
|
4,096 | RIPE NCC | ALLOCATED PA |
| 91.235.214.0/24 |
Strident LTD
|
256 | RIPE NCC | ASSIGNED PI |
| 146.66.64.0/18 |
ZEN-INFRA-ACCESS-PTP
|
16,384 | RIPE NCC | ASSIGNED PA |
| 185.6.135.0/24 |
Kijoma Broadband
|
256 | RIPE NCC | ASSIGNED PA |
| 185.81.232.0/22 |
Spectrum Internet LTD
|
1,024 | RIPE NCC | ALLOCATED PA |
| 185.169.116.0/23 |
PLUSTEL-DSL2
|
512 | RIPE NCC | ASSIGNED PA |
| 185.169.118.0/23 |
PLUSTEL-DSL
|
512 | RIPE NCC | ASSIGNED PA |
| 185.183.100.0/22 |
5g Communications Limited
|
1,024 | RIPE NCC | ALLOCATED PA |
| 188.122.32.0/20 |
5g Communications Limited
|
4,096 | RIPE NCC | ALLOCATED PA |
| 188.122.48.0/21 |
5g Communications Limited
|
2,048 | RIPE NCC | ALLOCATED PA |
| 188.122.56.0/22 |
5g Communications Limited
|
1,024 | RIPE NCC | ALLOCATED PA |
| 188.122.60.0/23 |
5g Communications Limited
|
512 | RIPE NCC | ALLOCATED PA |
| 188.122.63.0/24 |
Group5G
|
256 | RIPE NCC | ASSIGNED PA |
| 193.19.156.0/23 |
GHOST BROADBAND LIMITED
|
512 | RIPE NCC | SUB-ALLOCATED PA |
| 212.23.0.0/19 |
Rochdale
|
8,192 | RIPE NCC | ASSIGNED PA |
| 217.155.0.0/16 |
Zen Internet LTD
|
65,536 | RIPE NCC | ALLOCATED PA |
| Prefix | Organization | Size | Registry | Status |
|---|---|---|---|---|
| 2001:678:7a8::/49 |
WATERGROVE TRUST
|
6.0446× 1023 | RIPE NCC | ASSIGNED PI |
| 2001:678:7a8:8000::/49 |
WATERGROVE TRUST
|
6.0446× 1023 | RIPE NCC | ASSIGNED PI |
| 2a02:8010::/29 |
Zen Internet
|
6.3383× 1029 | RIPE NCC | ASSIGNED |
Peers
AS13037 actively fosters the following peering relationships that enhance network performance through direct, settlement-free traffic exchange. Even with a modest number of peers, each connection serves as a strategic asset—optimizing routing, reducing latency, and minimizing transit costs.
AS1031
AS1267
AS1828
AS2119
AS2603
AS2856
AS3170
AS3214
AS3216
AS3741
AS4455
AS5405
AS5413
AS5713
AS6233
AS6424
AS6667
AS6774
AS6894
AS6908
AS6939
AS7195
AS7473
AS7575
AS8220
AS8426
AS8455
AS8943
AS8966
AS9002
AS9009
AS9044
AS12552
AS12969
AS13030
AS13237
AS14537
AS14630
AS15412
AS15692
AS16552
AS17639
AS18106
AS20764
AS22356
AS23106
AS24482
AS25091
AS25160
AS25369
AS28792
AS29075
AS30844
AS31742
AS33891
AS34177
AS34224
AS34288
AS34549
AS34927
AS35266
AS35280
AS37100
AS37468
AS37497
AS37662
AS37721
AS38880
AS39120
AS39122
AS39351
AS41047
AS41095
AS41327
AS41811
AS42473
AS45352
AS47957
AS48070
AS48185
AS48362
AS49544
AS50300
AS50304
AS50629
AS51185
AS52320
AS58511
AS61568
AS62167
AS62275
AS63927
AS137409
AS207841
AS212483
AS213241
AS263152
AS271253
AS398465
Upstreams
AS13037 connects to the global Internet via at least 3 upstream providers. In this setup, AS13037 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.