[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ESnet (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Fri Aug 9 22:20:38 UTC 2024
IPv4 R&E Routing Table Report 22:20 GMT Fri 09 Aug, 2024
IPv4 BGP Table (R&E) as seen at ESnet.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/ESnet/
Analysis Summary
----------------
BGP routing table entries examined: 19645
Prefixes after maximum aggregation (per Origin AS): 10860
Deaggregation factor: 1.81
Unique aggregates announced (without unneeded subnets): 12044
Number of IPv4 prefixes with a valid ROA: 6031
Number of IPv4 prefixes with an invalid ROA: 5
Number of IPv4 prefixes with no ROA: 13609
Total ASes present in the Internet Routing Table: 2808
Prefixes per ASN: 7.00
Origin-only ASes present in the Internet Routing Table: 2426
Origin ASes announcing only one prefix: 1065
Transit ASes present in the Internet Routing Table: 382
Transit-only ASes present in the Internet Routing Table: 78
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 18
Max AS path prepend of ASN (395156) 12
Prefixes from unregistered ASNs in the Routing Table: 2
Number of instances of unregistered ASNs: 2
Number of 32-bit ASNs allocated by the RIRs: 45142
Number of 32-bit ASNs visible in the Routing Table: 667
Prefixes from 32-bit ASNs in the Routing Table: 1874
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: 4
Number of addresses announced to Internet: 175759872
Equivalent to 10 /8s, 121 /16s and 226 /24s
Percentage of available address space announced: 4.7
Percentage of allocated address space announced: 4.7
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: 2303
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4651
Total APNIC prefixes after maximum aggregation: 2280
APNIC Deaggregation factor: 2.04
Prefixes being announced from the APNIC address blocks: 4649
Unique aggregates announced from the APNIC address blocks: 2658
APNIC Region origin ASes present in the Internet Routing Table: 571
APNIC Prefixes per ASN: 8.14
APNIC Region origin ASes announcing only one prefix: 241
APNIC Region transit ASes present in the Internet Routing Table: 61
Average APNIC Region AS path length visible: 3.9
Max APNIC Region AS path length visible: 12
Number of APNIC region 32-bit ASNs visible in the Routing Table: 224
Number of APNIC addresses announced to Internet: 35720192
Equivalent to 2 /8s, 33 /16s and 12 /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: 9025
Total ARIN prefixes after maximum aggregation: 5087
ARIN Deaggregation factor: 1.77
Prefixes being announced from the ARIN address blocks: 9034
Unique aggregates announced from the ARIN address blocks: 5588
ARIN Region origin ASes present in the Internet Routing Table: 1313
ARIN Prefixes per ASN: 6.88
ARIN Region origin ASes announcing only one prefix: 460
ARIN Region transit ASes present in the Internet Routing Table: 166
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 15
Number of ARIN region 32-bit ASNs visible in the Routing Table: 217
Number of ARIN addresses announced to Internet: 79600128
Equivalent to 4 /8s, 190 /16s and 154 /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, 47/8, 48/8, 50/8, 52/8, 53/8,
54/8, 55/8, 56/8, 57/8, 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: 3499
Total RIPE prefixes after maximum aggregation: 2816
RIPE Deaggregation factor: 1.24
Prefixes being announced from the RIPE address blocks: 3491
Unique aggregates announced from the RIPE address blocks: 2892
RIPE Region origin ASes present in the Internet Routing Table: 664
RIPE Prefixes per ASN: 5.26
RIPE Region origin ASes announcing only one prefix: 298
RIPE Region transit ASes present in the Internet Routing Table: 104
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 13
Number of RIPE region 32-bit ASNs visible in the Routing Table: 153
Number of RIPE addresses announced to Internet: 53833728
Equivalent to 3 /8s, 53 /16s and 112 /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,
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: 1357
Total LACNIC prefixes after maximum aggregation: 521
LACNIC Deaggregation factor: 2.60
Prefixes being announced from the LACNIC address blocks: 1357
Unique aggregates announced from the LACNIC address blocks: 706
LACNIC Region origin ASes present in the Internet Routing Table: 148
LACNIC Prefixes per ASN: 9.17
LACNIC Region origin ASes announcing only one prefix: 52
LACNIC Region transit ASes present in the Internet Routing Table: 22
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 13
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 61
Number of LACNIC addresses announced to Internet: 4113408
Equivalent to 0 /8s, 62 /16s and 196 /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: 1111
Total AfriNIC prefixes after maximum aggregation: 154
AfriNIC Deaggregation factor: 7.21
Prefixes being announced from the AfriNIC address blocks: 1110
Unique aggregates announced from the AfriNIC address blocks: 197
AfriNIC Region origin ASes present in the Internet Routing Table: 32
AfriNIC Prefixes per ASN: 34.69
AfriNIC Region origin ASes announcing only one prefix: 14
AfriNIC Region transit ASes present in the Internet Routing Table: 9
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 12
Number of AfriNIC addresses announced to Internet: 2482176
Equivalent to 0 /8s, 37 /16s and 224 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 45/8, 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 588 2138 463 SINET-AS Research Organization of Informa
7497 447 180 24 CSTNET-AS-AP Computer Network Information
1237 190 74 145 KREONET-AS-KR KISTI, KR
58647 180 18 2 KAGAWAU-AS Kagawa University, JP
7575 169 329 113 AARNET-AS-AP Australian Academic and Rese
55824 132 18 19 NKN-CORE-NW NKN Core Network, IN
4538 111 2384 69 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
23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2152 500 507 97 CENIC-2152, US
2920 229 44 49 LACOE, US
376 201 162 150 RISQ-AS, CA
668 201 640 172 DNIC-AS-00668, US
5786 198 16 1 UPRENET, PR
270 160 345 86 AS270, US
18558 137 18 5 NETBLK-RCOEK, US
81 132 469 34 NCREN, US
23024 96 7 21 OCDE, US
237 90 544 55 MERIT-AS-14, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 283 1899 250 DFN Verein zur Foerderung eines Deutschen
786 184 1767 181 JANET Jisc Services Limited, GB
8895 135 24 4 ISU Internet Services Unit ISU, SA
559 113 533 103 SWITCH Peering requests: peering at switch.c
1103 95 1247 82 SURFNET-NL SURFnet, The Netherlands, NL
2614 90 26 70 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnolog
553 78 462 78 BELWUE BelWue-Koordination, DE
3267 76 26 66 NIKS, RU
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 158 176 42 Rede Nacional de Ensino e Pesquisa, BR
28391 153 10 67 Universidad Juarez Autonoma de Tabasco, M
11340 109 25 52 Red Universitaria Nacional, CL
271640 67 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
61468 49 5 17 CEDIA, EC
19611 48 17 2 Associacao Antonio Vieira - Unisinos, BR
4270 46 16 1 Red de Interconexion Universitaria, AR
2715 43 99 32 Fundacao Carlos Chagas Filho de Amparo a
28614 38 2 2 Fundacao Universidade Regional de Blumena
3596 37 8 4 Universidad Autonoma Metropolitana, MX
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 525 82 3 KENET-AS, KE
2018 381 319 71 TENET-1, ZA
8094 47 48 18 PUKNET, ZA
327700 43 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37182 13 8 1 TERNET, TZ
37661 13 8 5 NRaE1-AS, NG
37501 11 49 6 UOFS, ZA
36982 8 33 8 UCT, ZA
37215 8 8 1 MAREN, MW
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 588 2138 463 SINET-AS Research Organization of Informa
36914 525 82 3 KENET-AS, KE
2152 500 507 97 CENIC-2152, US
7497 447 180 24 CSTNET-AS-AP Computer Network Information
2018 381 319 71 TENET-1, ZA
680 283 1899 250 DFN Verein zur Foerderung eines Deutschen
2920 229 44 49 LACOE, US
376 201 162 150 RISQ-AS, CA
668 201 640 172 DNIC-AS-00668, US
5786 198 16 1 UPRENET, PR
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
36914 525 522 KENET-AS, KE
7497 447 423 CSTNET-AS-AP Computer Network Information Cente
2152 500 403 CENIC-2152, US
2018 381 310 TENET-1, ZA
5786 198 197 UPRENET, PR
2920 229 180 LACOE, US
58647 180 178 KAGAWAU-AS Kagawa University, JP
18558 137 132 NETBLK-RCOEK, US
8895 135 131 ISU Internet Services Unit ISU, SA
1916 158 116 Rede Nacional de Ensino e Pesquisa, BR
Complete listing at https://bgp.nsrc.org/REN/ESnet/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
22272 UNALLOCATED 206.208.24.0/21 6325 ILLINOIS-CENTURY, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
164.160.192.0/21 Origin: 37661 NRaE1-AS, NG
164.160.192.0/21 Transit: 37288 WACREN, SN
202.46.0.0/20 Origin: 147171 IDNIC-BRIN-AS-ID Badan Riset dan Inovasi
202.46.0.0/20 Transit: 64302 IDNIC-IDREN-AS-ID IDREN - Indonesia Rese
202.46.240.0/20 Origin: 147171 IDNIC-BRIN-AS-ID Badan Riset dan Inovasi
202.46.240.0/20 Transit: 64302 IDNIC-IDREN-AS-ID IDREN - Indonesia Rese
202.46.245.0/24 Origin: 147171 IDNIC-BRIN-AS-ID Badan Riset dan Inovasi
202.46.245.0/24 Transit: 64302 IDNIC-IDREN-AS-ID IDREN - Indonesia Rese
Complete listing at https://bgp.nsrc.org/REN/ESnet/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 /9:0 /10:0 /11:0 /12:0
/13:0 /14:35 /15:118 /16:2014 /17:427 /18:450
/19:583 /20:901 /21:911 /22:1507 /23:1648 /24:11051
/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 503 525 KENET-AS, KE
8895 130 135 ISU Internet Services Unit ISU, SA
2152 58 500 CENIC-2152, US
23024 38 96 OCDE, US
327700 38 43 MoRENet, MZ
32440 36 63 LONI, US
3267 35 76 NIKS, RU
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
46115 32 35 LUTHER, US
200521 31 53 SEAP-AGE, ES
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2 5:15 6:4 8:5 12:2 14:92
18:43 23:9 24:3 31:1 35:8 37:8
38:11 40:1 41:236 42:10 44:5 45:48
46:5 47:1 49:8 50:5 52:1 58:1
59:19 60:6 61:3 62:7 63:37 64:44
65:15 66:47 67:45 68:21 69:19 70:2
71:1 72:7 74:54 76:40 77:10 78:3
79:10 80:13 81:25 82:6 83:7 84:4
85:45 86:2 87:1 89:11 91:40 92:2
93:12 94:2 95:2 96:5 97:3 98:2
101:1 102:4 103:320 104:76 107:2 108:6
109:4 111:16 113:2 114:24 116:6 117:61
118:33 119:23 121:27 122:8 123:8 124:42
125:5 128:84 129:35 130:95 131:63 132:67
133:155 134:109 136:197 137:91 138:58 139:6
140:33 141:3 142:25 143:24 144:28 145:2
146:135 147:58 148:194 149:13 150:40 151:11
152:133 153:14 154:37 155:59 156:138 157:20
158:35 159:121 160:30 161:18 162:32 163:61
164:13 165:47 166:2 167:10 168:119 169:6
170:96 171:1 172:3 173:5 174:1 175:29
177:6 179:8 180:15 181:1 182:1 184:7
185:51 186:3 187:19 188:13 189:3 190:19
191:13 192:1502 193:257 194:122 195:65 196:150
197:312 198:602 199:290 200:284 201:36 202:640
203:429 204:396 205:177 206:208 207:307 208:67
209:170 210:219 211:14 212:162 213:6 214:8
216:90 217:9 218:22 219:5 220:17 222:2
223:4
End of report
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