[REN-BGP-stats-all] IPv4 R&E Routing Table Report - TENET (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sun Jan 5 18:45:35 UTC 2025
IPv4 R&E Routing Table Report 18:45 GMT Sun 05 Jan, 2025
IPv4 BGP Table (R&E) as seen at TENET.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/TENET/
Analysis Summary
----------------
BGP routing table entries examined: 13256
Prefixes after maximum aggregation (per Origin AS): 6738
Deaggregation factor: 1.97
Unique aggregates announced (without unneeded subnets): 7766
Number of IPv4 prefixes with a valid ROA: 4618
Number of IPv4 prefixes with an invalid ROA: 1
Number of IPv4 prefixes with no ROA: 8524
Total ASes present in the Internet Routing Table: 1582
Prefixes per ASN: 8.38
Origin-only ASes present in the Internet Routing Table: 1339
Origin ASes announcing only one prefix: 563
Transit ASes present in the Internet Routing Table: 243
Transit-only ASes present in the Internet Routing Table: 67
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 28
Max AS path prepend of ASN (138136) 20
Prefixes from unregistered ASNs in the Routing Table: 1
Number of instances of unregistered ASNs: 1
Number of 32-bit ASNs allocated by the RIRs: 46014
Number of 32-bit ASNs visible in the Routing Table: 343
Prefixes from 32-bit ASNs in the Routing Table: 904
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 1
Number of addresses announced to Internet: 153846784
Equivalent to 9 /8s, 43 /16s and 132 /24s
Percentage of available address space announced: 4.2
Percentage of allocated address space announced: 4.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 1494
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3821
Total APNIC prefixes after maximum aggregation: 1891
APNIC Deaggregation factor: 2.02
Prefixes being announced from the APNIC address blocks: 3821
Unique aggregates announced from the APNIC address blocks: 2179
APNIC Region origin ASes present in the Internet Routing Table: 398
APNIC Prefixes per ASN: 9.60
APNIC Region origin ASes announcing only one prefix: 176
APNIC Region transit ASes present in the Internet Routing Table: 50
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 28
Number of APNIC region 32-bit ASNs visible in the Routing Table: 161
Number of APNIC addresses announced to Internet: 45213184
Equivalent to 2 /8s, 177 /16s and 230 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-153913
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 6825
Total ARIN prefixes after maximum aggregation: 3780
ARIN Deaggregation factor: 1.81
Prefixes being announced from the ARIN address blocks: 6833
Unique aggregates announced from the ARIN address blocks: 4275
ARIN Region origin ASes present in the Internet Routing Table: 890
ARIN Prefixes per ASN: 7.68
ARIN Region origin ASes announcing only one prefix: 292
ARIN Region transit ASes present in the Internet Routing Table: 126
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 15
Number of ARIN region 32-bit ASNs visible in the Routing Table: 120
Number of ARIN addresses announced to Internet: 89558528
Equivalent to 5 /8s, 86 /16s and 142 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-402332
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8,
67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8,
74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8,
100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8,
131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8,
139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8,
148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8,
159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8,
167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8,
184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8,
207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 734
Total RIPE prefixes after maximum aggregation: 579
RIPE Deaggregation factor: 1.27
Prefixes being announced from the RIPE address blocks: 728
Unique aggregates announced from the RIPE address blocks: 638
RIPE Region origin ASes present in the Internet Routing Table: 137
RIPE Prefixes per ASN: 5.31
RIPE Region origin ASes announcing only one prefix: 60
RIPE Region transit ASes present in the Internet Routing Table: 23
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 11
Number of RIPE region 32-bit ASNs visible in the Routing Table: 25
Number of RIPE addresses announced to Internet: 13673984
Equivalent to 0 /8s, 208 /16s and 166 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8,
81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8,
88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8,
95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8,
185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 821
Total LACNIC prefixes after maximum aggregation: 354
LACNIC Deaggregation factor: 2.32
Prefixes being announced from the LACNIC address blocks: 819
Unique aggregates announced from the LACNIC address blocks: 511
LACNIC Region origin ASes present in the Internet Routing Table: 69
LACNIC Prefixes per ASN: 11.87
LACNIC Region origin ASes announcing only one prefix: 28
LACNIC Region transit ASes present in the Internet Routing Table: 21
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 13
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 30
Number of LACNIC addresses announced to Internet: 3118080
Equivalent to 0 /8s, 47 /16s and 148 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1054
Total AfriNIC prefixes after maximum aggregation: 133
AfriNIC Deaggregation factor: 7.92
Prefixes being announced from the AfriNIC address blocks: 1054
Unique aggregates announced from the AfriNIC address blocks: 162
AfriNIC Region origin ASes present in the Internet Routing Table: 20
AfriNIC Prefixes per ASN: 52.70
AfriNIC Region origin ASes announcing only one prefix: 7
AfriNIC Region transit ASes present in the Internet Routing Table: 7
Average AfriNIC Region AS path length visible: 2.8
Max AfriNIC Region AS path length visible: 8
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 7
Number of AfriNIC addresses announced to Internet: 2282752
Equivalent to 0 /8s, 34 /16s and 213 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 621 2202 463 SINET-AS Research Organization of Informa
7497 449 180 24 CSTNET-AS-AP Computer Network Information
1237 191 74 145 KREONET-AS-KR KISTI, KR
58647 182 18 2 KAGAWAU-AS Kagawa University, JP
7575 168 313 111 AARNET-AS-AP Australian Academic and Rese
55824 145 19 20 NKN-CORE-NW NKN Core Network, IN
4538 136 4192 71 ERX-CERNET-BKB China Education and Resear
4621 69 37 10 UNINET-AS-AP UNINET-, TH
23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR
2697 53 3 31 ERX-ERNET-AS Education and Research Netwo
Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2152 428 507 98 CENIC-2152, US
668 205 646 174 DNIC-AS-00668, US
5786 198 16 1 UPRENET, PR
376 182 160 133 RISQ-AS, CA
2920 173 34 7 LACOE, US
81 129 519 34 NCREN, US
270 115 328 79 AS270, US
23024 97 7 19 OCDE, US
21976 91 50 17 NJEDGE-NET, US
237 81 541 47 MERIT-AS-14, US
Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8895 114 8 63 ISU Internet Services Unit ISU, SA
1103 96 1743 83 SURFNET-NL SURFnet, The Netherlands, NL
3267 77 29 67 NIKS, RU
1653 52 150 49 SUNET SUNET Swedish University Network, E
1741 39 149 18 FUNETAS, FI
1880 14 1 7 STUPI, SE
8674 14 2 11 NETNOD-IX Netnod AB, SE
224 12 256 12 UNINETT UNINETT, The Norwegian University
1101 12 465 12 IP-EEND-AS IP-EEND BV, NL
1104 11 18 10 NIKHEF Nikhef, NL
Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
28391 154 10 68 Universidad Juarez Autonoma de Tabasco, M
1916 136 171 34 Rede Nacional de Ensino e Pesquisa, BR
11340 109 25 52 Red Universitaria Nacional, CL
61468 51 5 16 CEDIA, EC
2715 48 99 36 Fundacao Carlos Chagas Filho de Amparo a
3596 37 8 4 Universidad Autonoma Metropolitana, MX
1251 34 31 27 FUNDACAO DE AMPARO A PESQUISA DO ESTADO S
20191 28 16 1 Pontificia Universidad Catolica de Chile,
21612 28 16 1 FUNDACAO INSTITUTO OSWALDO CRUZ, BR
278 22 32 4 Universidad Nacional Autonoma de Mexico,
Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 537 82 3 KENET-AS, KE
2018 379 319 71 TENET-1, ZA
8094 47 48 18 PUKNET, ZA
37215 32 8 1 MAREN, MW
327700 12 16 1 MoRENet, MZ
37501 11 49 6 UOFS, ZA
36982 8 33 8 UCT, ZA
37654 6 0 5 RwEdNet-AS, RW
37182 5 0 5 TERNET, TZ
37520 3 16 3 Rhodes-Univ, ZA
Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 621 2202 463 SINET-AS Research Organization of Informa
36914 537 82 3 KENET-AS, KE
7497 449 180 24 CSTNET-AS-AP Computer Network Information
2152 428 507 98 CENIC-2152, US
2018 379 319 71 TENET-1, ZA
668 205 646 174 DNIC-AS-00668, US
5786 198 16 1 UPRENET, PR
1237 191 74 145 KREONET-AS-KR KISTI, KR
376 182 160 133 RISQ-AS, CA
58647 182 18 2 KAGAWAU-AS Kagawa University, JP
Complete listing at https://bgp.nsrc.org/REN/TENET/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
36914 537 534 KENET-AS, KE
7497 449 425 CSTNET-AS-AP Computer Network Information Cente
2152 428 330 CENIC-2152, US
2018 379 308 TENET-1, ZA
5786 198 197 UPRENET, PR
58647 182 180 KAGAWAU-AS Kagawa University, JP
2920 173 166 LACOE, US
55824 145 125 NKN-CORE-NW NKN Core Network, IN
1916 136 102 Rede Nacional de Ensino e Pesquisa, BR
81 129 95 NCREN, US
Complete listing at https://bgp.nsrc.org/REN/TENET/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
26971 UNALLOCATED 129.111.0.0/16 276 OTS-AS-276, US
Complete listing at https://bgp.nsrc.org/REN/TENET/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
203.9.156.0/24 Origin: 1851 ADELAIDE-UNIVERSITY-AS-AP The University
203.9.156.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res
Complete listing at https://bgp.nsrc.org/REN/TENET/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:0 /9:1 /10:1 /11:1 /12:10
/13:17 /14:28 /15:86 /16:1447 /17:358 /18:374
/19:415 /20:591 /21:543 /22:946 /23:1049 /24:7389
/25:0 /26:0 /27:0 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 513 537 KENET-AS, KE
8895 111 114 ISU Internet Services Unit ISU, SA
2152 58 428 CENIC-2152, US
23024 37 97 OCDE, US
3267 34 77 NIKS, RU
32440 32 57 LONI, US
46115 32 33 LUTHER, US
25977 30 44 HCCS, US
27609 29 45 USC-UNIVERSITY-HOSPITAL, US
37215 26 32 MAREN, MW
Complete listing at https://bgp.nsrc.org/REN/TENET/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2 4:2 6:4 8:2 12:2 14:92
23:7 24:3 35:8 38:11 41:222 42:11
44:3 45:45 47:1 49:10 50:2 52:1
59:19 60:6 61:3 62:3 63:32 64:44
65:5 66:42 67:39 68:12 69:18 70:2
71:1 72:7 74:49 76:37 77:8 80:5
81:1 82:4 83:1 84:2 85:20 86:5
87:1 89:2 91:6 92:2 93:1 96:5
97:1 98:2 101:1 102:2 103:291 104:79
108:10 109:4 111:21 113:1 114:24 116:9
117:61 118:33 119:23 121:27 122:8 123:8
124:42 125:5 128:53 129:29 130:95 131:59
132:66 133:155 134:106 136:198 137:57 138:57
139:5 140:33 141:3 142:38 143:23 144:24
146:135 147:60 148:188 149:13 150:70 151:9
152:131 153:3 154:32 155:64 156:130 157:26
158:30 159:116 160:31 161:17 162:24 163:62
164:11 165:49 166:1 167:26 168:118 169:4
170:7 171:1 173:5 175:3 177:2 180:16
181:1 182:1 184:5 185:6 186:2 187:5
188:3 190:16 191:1 192:734 193:25 194:35
195:2 196:140 197:324 198:399 199:172 200:100
201:4 202:369 203:202 204:133 205:92 206:119
207:172 208:34 209:119 210:143 211:2 212:101
214:6 216:32 218:23 219:5 220:11 223:4
End of report
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