[REN-BGP-stats-all] IPv4 R&E Routing Table Report - TENET (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Tue Feb 11 18:30:44 UTC 2025
IPv4 R&E Routing Table Report 18:30 GMT Tue 11 Feb, 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: 16771
Prefixes after maximum aggregation (per Origin AS): 8437
Deaggregation factor: 1.99
Unique aggregates announced (without unneeded subnets): 9561
Number of IPv4 prefixes with a valid ROA: 5971
Number of IPv4 prefixes with an invalid ROA: 2
Number of IPv4 prefixes with no ROA: 10798
Total ASes present in the Internet Routing Table: 2265
Prefixes per ASN: 7.40
Origin-only ASes present in the Internet Routing Table: 1972
Origin ASes announcing only one prefix: 841
Transit ASes present in the Internet Routing Table: 293
Transit-only ASes present in the Internet Routing Table: 60
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 16
Max AS path prepend of ASN (395156) 12
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: 46105
Number of 32-bit ASNs visible in the Routing Table: 522
Prefixes from 32-bit ASNs in the Routing Table: 1482
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: 2
Number of addresses announced to Internet: 157558784
Equivalent to 9 /8s, 100 /16s and 40 /24s
Percentage of available address space announced: 4.3
Percentage of allocated address space announced: 4.3
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: 1863
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4689
Total APNIC prefixes after maximum aggregation: 2259
APNIC Deaggregation factor: 2.08
Prefixes being announced from the APNIC address blocks: 4688
Unique aggregates announced from the APNIC address blocks: 2620
APNIC Region origin ASes present in the Internet Routing Table: 565
APNIC Prefixes per ASN: 8.30
APNIC Region origin ASes announcing only one prefix: 243
APNIC Region transit ASes present in the Internet Routing Table: 57
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 14
Number of APNIC region 32-bit ASNs visible in the Routing Table: 210
Number of APNIC addresses announced to Internet: 45555200
Equivalent to 2 /8s, 183 /16s and 30 /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: 8588
Total ARIN prefixes after maximum aggregation: 4878
ARIN Deaggregation factor: 1.76
Prefixes being announced from the ARIN address blocks: 8596
Unique aggregates announced from the ARIN address blocks: 5376
ARIN Region origin ASes present in the Internet Routing Table: 1269
ARIN Prefixes per ASN: 6.77
ARIN Region origin ASes announcing only one prefix: 448
ARIN Region transit ASes present in the Internet Routing Table: 159
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 206
Number of ARIN addresses announced to Internet: 91656192
Equivalent to 5 /8s, 118 /16s and 144 /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: 881
Total RIPE prefixes after maximum aggregation: 618
RIPE Deaggregation factor: 1.43
Prefixes being announced from the RIPE address blocks: 875
Unique aggregates announced from the RIPE address blocks: 666
RIPE Region origin ASes present in the Internet Routing Table: 190
RIPE Prefixes per ASN: 4.61
RIPE Region origin ASes announcing only one prefix: 86
RIPE Region transit ASes present in the Internet Routing Table: 28
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 11
Number of RIPE region 32-bit ASNs visible in the Routing Table: 33
Number of RIPE addresses announced to Internet: 13838080
Equivalent to 0 /8s, 211 /16s and 39 /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: 1476
Total LACNIC prefixes after maximum aggregation: 539
LACNIC Deaggregation factor: 2.74
Prefixes being announced from the LACNIC address blocks: 1474
Unique aggregates announced from the LACNIC address blocks: 707
LACNIC Region origin ASes present in the Internet Routing Table: 156
LACNIC Prefixes per ASN: 9.45
LACNIC Region origin ASes announcing only one prefix: 55
LACNIC Region transit ASes present in the Internet Routing Table: 24
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: 65
Number of LACNIC addresses announced to Internet: 4202496
Equivalent to 0 /8s, 64 /16s and 32 /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: 1136
Total AfriNIC prefixes after maximum aggregation: 142
AfriNIC Deaggregation factor: 8.00
Prefixes being announced from the AfriNIC address blocks: 1136
Unique aggregates announced from the AfriNIC address blocks: 190
AfriNIC Region origin ASes present in the Internet Routing Table: 24
AfriNIC Prefixes per ASN: 47.33
AfriNIC Region origin ASes announcing only one prefix: 9
AfriNIC Region transit ASes present in the Internet Routing Table: 7
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 9
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8
Number of AfriNIC addresses announced to Internet: 2306304
Equivalent to 0 /8s, 35 /16s and 49 /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 626 2202 463 SINET-AS Research Organization of Informa
7497 450 180 24 CSTNET-AS-AP Computer Network Information
1237 192 74 146 KREONET-AS-KR KISTI, KR
58647 183 18 2 KAGAWAU-AS Kagawa University, JP
7575 173 297 116 AARNET-AS-AP Australian Academic and Rese
55824 147 19 21 NKN-CORE-NW NKN Core Network, IN
4538 140 4192 71 ERX-CERNET-BKB China Education and Resear
4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha
4621 69 37 10 UNINET-AS-AP UNINET-, TH
2697 59 4 34 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 424 507 98 CENIC-2152, US
2920 221 44 45 LACOE, US
668 210 647 178 DNIC-AS-00668, US
376 202 162 151 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
18558 140 18 5 NETBLK-RCOEK, US
81 129 519 34 NCREN, US
270 117 328 81 AS270, US
23024 97 7 17 OCDE, US
21976 90 34 16 NJEDGE-NET, 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 110 24 5 ISU Internet Services Unit ISU, SA
1103 98 1743 84 SURFNET-NL SURFnet, The Netherlands, NL
3267 78 29 68 NIKS, RU
1653 51 150 48 SUNET SUNET Swedish University Network, E
3218 41 3 21 COSMOS-3218-AS AS-COSMOS root, RU
1741 39 149 18 FUNETAS, FI
8674 16 2 11 NETNOD-IX Netnod AB, SE
1880 14 1 7 STUPI, SE
224 13 256 13 UNINETT UNINETT, The Norwegian University
1101 12 465 12 IP-EEND-AS IP-EEND BV, 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
1916 236 178 42 Rede Nacional de Ensino e Pesquisa, BR
28391 157 10 69 Universidad Juarez Autonoma de Tabasco, M
11340 109 25 52 Red Universitaria Nacional, CL
271640 67 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
4270 52 16 1 Red de Interconexion Universitaria, AR
61468 52 5 17 CEDIA, EC
2715 49 99 35 Fundacao Carlos Chagas Filho de Amparo a
19611 48 17 2 Associacao Antonio Vieira - Unisinos, BR
28614 38 2 2 Fundacao Universidade Regional de Blumena
1251 37 31 26 FUNDACAO DE AMPARO A PESQUISA DO ESTADO S
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 556 82 3 KENET-AS, KE
2018 378 319 71 TENET-1, ZA
8094 47 48 18 PUKNET, ZA
37182 36 8 1 TERNET, TZ
37215 34 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37501 11 49 6 UOFS, ZA
327700 11 16 1 MoRENet, MZ
36982 8 33 8 UCT, ZA
37654 8 1 5 RwEdNet-AS, RW
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 626 2202 463 SINET-AS Research Organization of Informa
36914 556 82 3 KENET-AS, KE
7497 450 180 24 CSTNET-AS-AP Computer Network Information
2152 424 507 98 CENIC-2152, US
2018 378 319 71 TENET-1, ZA
1916 236 178 42 Rede Nacional de Ensino e Pesquisa, BR
2920 221 44 45 LACOE, US
668 210 647 178 DNIC-AS-00668, US
376 202 162 151 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
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 556 553 KENET-AS, KE
7497 450 426 CSTNET-AS-AP Computer Network Information Cente
2152 424 326 CENIC-2152, US
2018 378 307 TENET-1, ZA
5786 198 197 UPRENET, PR
1916 236 194 Rede Nacional de Ensino e Pesquisa, BR
58647 183 181 KAGAWAU-AS Kagawa University, JP
2920 221 176 LACOE, US
18558 140 135 NETBLK-RCOEK, US
55824 147 126 NKN-CORE-NW NKN Core Network, IN
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
202.14.117.0/24 Origin: 17827 STOU-AS-TH Sukhothai Thammathirat Open U
202.14.117.0/24 Transit: 4621 UNINET-AS-AP UNINET-, TH
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 /14:30 /15:87 /16:1462 /17:364 /18:409
/19:496 /20:747 /21:706 /22:1171 /23:1325 /24:9944
/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 532 556 KENET-AS, KE
8895 107 110 ISU Internet Services Unit ISU, SA
2152 53 424 CENIC-2152, US
23024 36 97 OCDE, US
37182 35 36 TERNET, TZ
3267 34 78 NIKS, RU
32440 33 58 LONI, US
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
46115 32 35 LUTHER, US
25977 30 44 HCCS, US
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 12:1 14:93
23:9 24:3 35:14 38:11 40:1 41:258
42:11 44:3 45:45 47:1 49:11 50:2
52:1 59:19 60:6 61:3 62:3 63:32
64:44 65:5 66:41 67:39 68:12 69:18
70:2 71:1 72:8 74:50 76:36 77:8
80:5 81:1 82:4 83:1 84:1 85:20
86:5 87:1 89:1 91:6 92:2 93:1
96:5 97:1 98:2 102:3 103:300 104:80
108:10 109:4 111:21 113:1 114:24 116:9
117:61 118:33 119:30 121:27 122:8 123:8
124:42 125:5 128:56 129:30 130:96 131:60
132:64 133:156 134:106 136:198 137:86 138:57
139:5 140:33 141:3 142:41 143:23 144:24
146:135 147:56 148:191 149:13 150:69 151:9
152:132 153:3 154:36 155:64 156:129 157:26
158:30 159:116 160:33 161:17 162:24 163:62
164:10 165:49 167:26 168:119 169:7 170:95
171:1 172:2 173:6 175:16 177:6 179:9
180:16 181:1 182:11 184:6 185:14 186:3
187:22 188:4 189:5 190:34 191:13 192:1101
193:65 194:55 195:30 196:146 197:338 198:553
199:275 200:332 201:37 202:642 203:438 204:385
205:166 206:211 207:271 208:65 209:158 210:220
211:3 212:106 213:2 214:9 216:93 218:23
219:6 220:16 222:2 223:15
End of report
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