[REN-BGP-stats-all] IPv4 R&E Routing Table Report - TENET (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Tue Jan 21 18:30:38 UTC 2025
IPv4 R&E Routing Table Report 18:30 GMT Tue 21 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: 16459
Prefixes after maximum aggregation (per Origin AS): 8188
Deaggregation factor: 2.01
Unique aggregates announced (without unneeded subnets): 9287
Number of IPv4 prefixes with a valid ROA: 5716
Number of IPv4 prefixes with an invalid ROA: 2
Number of IPv4 prefixes with no ROA: 10741
Total ASes present in the Internet Routing Table: 2191
Prefixes per ASN: 7.51
Origin-only ASes present in the Internet Routing Table: 1901
Origin ASes announcing only one prefix: 804
Transit ASes present in the Internet Routing Table: 290
Transit-only ASes present in the Internet Routing Table: 65
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 4.5
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: 46055
Number of 32-bit ASNs visible in the Routing Table: 503
Prefixes from 32-bit ASNs in the Routing Table: 1443
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: 157201408
Equivalent to 9 /8s, 94 /16s and 180 /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: 1775
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4679
Total APNIC prefixes after maximum aggregation: 2251
APNIC Deaggregation factor: 2.08
Prefixes being announced from the APNIC address blocks: 4678
Unique aggregates announced from the APNIC address blocks: 2613
APNIC Region origin ASes present in the Internet Routing Table: 560
APNIC Prefixes per ASN: 8.35
APNIC Region origin ASes announcing only one prefix: 237
APNIC Region transit ASes present in the Internet Routing Table: 59
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: 207
Number of APNIC addresses announced to Internet: 45560320
Equivalent to 2 /8s, 183 /16s and 50 /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: 8642
Total ARIN prefixes after maximum aggregation: 4861
ARIN Deaggregation factor: 1.78
Prefixes being announced from the ARIN address blocks: 8649
Unique aggregates announced from the ARIN address blocks: 5353
ARIN Region origin ASes present in the Internet Routing Table: 1268
ARIN Prefixes per ASN: 6.82
ARIN Region origin ASes announcing only one prefix: 448
ARIN Region transit ASes present in the Internet Routing Table: 161
Average ARIN Region AS path length visible: 4.6
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: 91707392
Equivalent to 5 /8s, 119 /16s and 88 /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: 614
Total RIPE prefixes after maximum aggregation: 396
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 609
Unique aggregates announced from the RIPE address blocks: 419
RIPE Region origin ASes present in the Internet Routing Table: 117
RIPE Prefixes per ASN: 5.21
RIPE Region origin ASes announcing only one prefix: 55
RIPE Region transit ASes present in the Internet Routing Table: 21
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 11
Number of RIPE region 32-bit ASNs visible in the Routing Table: 17
Number of RIPE addresses announced to Internet: 13427456
Equivalent to 0 /8s, 204 /16s and 227 /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: 1401
Total LACNIC prefixes after maximum aggregation: 537
LACNIC Deaggregation factor: 2.61
Prefixes being announced from the LACNIC address blocks: 1399
Unique aggregates announced from the LACNIC address blocks: 712
LACNIC Region origin ASes present in the Internet Routing Table: 156
LACNIC Prefixes per ASN: 8.97
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: 4.7
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: 4199936
Equivalent to 0 /8s, 64 /16s and 22 /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: 1122
Total AfriNIC prefixes after maximum aggregation: 142
AfriNIC Deaggregation factor: 7.90
Prefixes being announced from the AfriNIC address blocks: 1122
Unique aggregates announced from the AfriNIC address blocks: 188
AfriNIC Region origin ASes present in the Internet Routing Table: 24
AfriNIC Prefixes per ASN: 46.75
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: 2.9
Max AfriNIC Region AS path length visible: 8
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8
Number of AfriNIC addresses announced to Internet: 2305792
Equivalent to 0 /8s, 35 /16s and 47 /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 172 297 115 AARNET-AS-AP Australian Academic and Rese
55824 146 19 20 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 507 507 99 CENIC-2152, US
2920 226 44 49 LACOE, US
668 206 646 175 DNIC-AS-00668, US
376 201 162 150 RISQ-AS, CA
5786 197 16 1 UPRENET, PR
18558 140 18 5 NETBLK-RCOEK, US
81 129 519 34 NCREN, US
270 117 328 81 AS270, US
23024 99 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 131 24 5 ISU Internet Services Unit ISU, SA
1103 96 1743 83 SURFNET-NL SURFnet, The Netherlands, NL
1653 49 150 47 SUNET SUNET Swedish University Network, E
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
1104 11 18 10 NIKHEF Nikhef, NL
29384 11 3 8 QATAR-FOUNDATION, QA
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 159 178 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 53 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 545 82 3 KENET-AS, KE
2018 379 319 71 TENET-1, ZA
8094 47 48 18 PUKNET, ZA
37182 36 8 1 TERNET, TZ
37215 32 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 6 0 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 545 82 3 KENET-AS, KE
2152 507 507 99 CENIC-2152, US
7497 450 180 24 CSTNET-AS-AP Computer Network Information
2018 379 319 71 TENET-1, ZA
2920 226 44 49 LACOE, US
668 206 646 175 DNIC-AS-00668, US
376 201 162 150 RISQ-AS, CA
5786 197 16 1 UPRENET, PR
1237 192 74 146 KREONET-AS-KR KISTI, KR
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 545 542 KENET-AS, KE
7497 450 426 CSTNET-AS-AP Computer Network Information Cente
2152 507 408 CENIC-2152, US
2018 379 308 TENET-1, ZA
5786 197 196 UPRENET, PR
58647 183 181 KAGAWAU-AS Kagawa University, JP
2920 226 177 LACOE, US
18558 140 135 NETBLK-RCOEK, US
55824 146 126 NKN-CORE-NW NKN Core Network, IN
8895 131 126 ISU Internet Services Unit ISU, SA
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 /16:1463 /17:362 /18:401
/19:488 /20:724 /21:684 /22:1137 /23:1274 /24:9779
/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 521 545 KENET-AS, KE
8895 126 131 ISU Internet Services Unit ISU, SA
2152 59 507 CENIC-2152, US
23024 38 99 OCDE, US
37182 35 36 TERNET, TZ
32440 33 58 LONI, US
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
46115 32 35 LUTHER, US
25977 30 44 HCCS, US
27609 29 45 USC-UNIVERSITY-HOSPITAL, 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
23:7 24:3 35:8 38:11 40:1 41:250
42:11 44:3 45:40 47:1 49:11 50:2
52:1 59:19 60:6 61:3 62:1 63:32
64:44 65:5 66:42 67:39 68:12 69:18
70:2 71:1 72:8 74:50 76:37 77:5
84:1 86:3 87:1 89:1 91:6 93:1
96:5 97:1 98:1 102:3 103:299 104:80
108:10 109:4 111:21 113:1 114:24 116:9
117:61 118:33 119:23 121:27 122:8 123:8
124:42 125:5 128:57 129:30 130:96 131:60
132:64 133:156 134:106 136:197 137:88 138:57
139:5 140:33 141:3 142:40 143:23 144:24
146:135 147:64 148:191 149:13 150:70 151:9
152:132 153:3 154:34 155:64 156:129 157:26
158:28 159:116 160:33 161:17 162:24 163:62
164:11 165:49 167:26 168:118 169:7 170:96
172:2 173:7 175:16 177:6 179:13 180:16
181:1 182:11 184:6 185:7 186:3 187:22
188:1 189:5 190:34 191:13 192:1091 193:25
194:29 195:25 196:147 197:332 198:559 199:277
200:266 201:37 202:637 203:437 204:389 205:178
206:211 207:298 208:65 209:153 210:220 211:3
212:123 214:9 216:92 218:23 219:6 220:16
222:2 223:15
End of report
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