[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ESnet (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Fri May 10 22:20:35 UTC 2024
IPv4 R&E Routing Table Report 22:20 GMT Fri 10 May, 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: 17645
Prefixes after maximum aggregation (per Origin AS): 9960
Deaggregation factor: 1.77
Unique aggregates announced (without unneeded subnets): 11043
Number of IPv4 prefixes with a valid ROA: 5094
Number of IPv4 prefixes with an invalid ROA: 7
Number of IPv4 prefixes with no ROA: 12544
Total ASes present in the Internet Routing Table: 2496
Prefixes per ASN: 7.07
Origin-only ASes present in the Internet Routing Table: 2174
Origin ASes announcing only one prefix: 954
Transit ASes present in the Internet Routing Table: 322
Transit-only ASes present in the Internet Routing Table: 59
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 3.7
Max AS path length visible: 14
Max AS path prepend of ASN ( 47805) 11
Prefixes from unregistered ASNs in the Routing Table: 16
Number of instances of unregistered ASNs: 16
Number of 32-bit ASNs allocated by the RIRs: 44442
Number of 32-bit ASNs visible in the Routing Table: 583
Prefixes from 32-bit ASNs in the Routing Table: 1653
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: 0
Number of addresses announced to Internet: 171138304
Equivalent to 10 /8s, 51 /16s and 93 /24s
Percentage of available address space announced: 4.6
Percentage of allocated address space announced: 4.6
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: 1776
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4224
Total APNIC prefixes after maximum aggregation: 2143
APNIC Deaggregation factor: 1.97
Prefixes being announced from the APNIC address blocks: 4225
Unique aggregates announced from the APNIC address blocks: 2401
APNIC Region origin ASes present in the Internet Routing Table: 498
APNIC Prefixes per ASN: 8.48
APNIC Region origin ASes announcing only one prefix: 221
APNIC Region transit ASes present in the Internet Routing Table: 47
Average APNIC Region AS path length visible: 3.8
Max APNIC Region AS path length visible: 13
Number of APNIC region 32-bit ASNs visible in the Routing Table: 188
Number of APNIC addresses announced to Internet: 35524864
Equivalent to 2 /8s, 30 /16s and 17 /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: 8517
Total ARIN prefixes after maximum aggregation: 4922
ARIN Deaggregation factor: 1.73
Prefixes being announced from the ARIN address blocks: 8539
Unique aggregates announced from the ARIN address blocks: 5479
ARIN Region origin ASes present in the Internet Routing Table: 1299
ARIN Prefixes per ASN: 6.57
ARIN Region origin ASes announcing only one prefix: 459
ARIN Region transit ASes present in the Internet Routing Table: 161
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 14
Number of ARIN region 32-bit ASNs visible in the Routing Table: 216
Number of ARIN addresses announced to Internet: 79992832
Equivalent to 4 /8s, 196 /16s and 152 /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: 2751
Total RIPE prefixes after maximum aggregation: 2209
RIPE Deaggregation factor: 1.25
Prefixes being announced from the RIPE address blocks: 2745
Unique aggregates announced from the RIPE address blocks: 2267
RIPE Region origin ASes present in the Internet Routing Table: 450
RIPE Prefixes per ASN: 6.10
RIPE Region origin ASes announcing only one prefix: 203
RIPE Region transit ASes present in the Internet Routing Table: 67
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 13
Number of RIPE region 32-bit ASNs visible in the Routing Table: 103
Number of RIPE addresses announced to Internet: 48976896
Equivalent to 2 /8s, 235 /16s and 84 /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: 1322
Total LACNIC prefixes after maximum aggregation: 520
LACNIC Deaggregation factor: 2.54
Prefixes being announced from the LACNIC address blocks: 1321
Unique aggregates announced from the LACNIC address blocks: 696
LACNIC Region origin ASes present in the Internet Routing Table: 154
LACNIC Prefixes per ASN: 8.58
LACNIC Region origin ASes announcing only one prefix: 54
LACNIC Region transit ASes present in the Internet Routing Table: 22
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: 63
Number of LACNIC addresses announced to Internet: 4216576
Equivalent to 0 /8s, 64 /16s and 87 /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: 815
Total AfriNIC prefixes after maximum aggregation: 152
AfriNIC Deaggregation factor: 5.36
Prefixes being announced from the AfriNIC address blocks: 815
Unique aggregates announced from the AfriNIC address blocks: 200
AfriNIC Region origin ASes present in the Internet Routing Table: 32
AfriNIC Prefixes per ASN: 25.47
AfriNIC Region origin ASes announcing only one prefix: 17
AfriNIC Region transit ASes present in the Internet Routing Table: 8
Average AfriNIC Region AS path length visible: 3.0
Max AfriNIC Region AS path length visible: 10
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 13
Number of AfriNIC addresses announced to Internet: 2427136
Equivalent to 0 /8s, 37 /16s and 9 /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 590 2162 464 SINET-AS Research Organization of Infor
7497 443 180 24 CSTNET-AS-AP Computer Network Informati
1237 184 74 139 KREONET-AS-KR KISTI, KR
58647 182 18 2 KAGAWAU-AS Kagawa University, JP
7575 169 329 113 AARNET-AS-AP Australian Academic and Re
55824 129 19 18 NKN-CORE-NW NKN Core Network, IN
4538 111 2384 69 ERX-CERNET-BKB China Education and Rese
4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, T
4621 70 37 10 UNINET-AS-AP UNINET-, TH
9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T
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
668 204 648 173 DNIC-AS-00668, US
376 201 162 151 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
2920 175 34 7 LACOE, US
270 159 345 85 AS270, US
2152 151 507 96 CSUNET-NW, US
18558 140 18 4 NETBLK-RCOEK, US
81 132 469 34 NCREN, US
23024 108 7 22 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
680 282 1899 249 DFN Verein zur Foerderung eines Deutsch
786 186 1767 183 JANET Jisc Services Limited, GB
8895 131 24 4 ISU Internet Services Unit ISU, SA
559 113 533 103 SWITCH Peering requests: peering at switch
1103 94 1247 82 SURFNET-NL SURFnet, The Netherlands, NL
2614 93 27 73 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnol
553 78 462 78 BELWUE BelWue-Koordination, DE
2200 63 598 58 FR-RENATER Reseau National de telecommu
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
28391 153 10 67 Universidad Juarez Autonoma de Tabasco,
1916 138 176 42 Rede Nacional de Ensino e Pesquisa, BR
11340 109 25 52 Red Universitaria Nacional, CL
271640 65 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
4270 48 16 1 Red de Interconexion Universitaria, AR
19611 48 17 2 Associacao Antonio Vieira - Unisinos, B
2715 43 99 32 Fundacao Carlos Chagas Filho de Amparo
61468 43 3 14 CEDIA, EC
28614 38 2 2 Fundacao Universidade Regional de Blume
3596 35 4 3 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
2018 378 319 71 TENET-1, ZA
36914 204 82 3 KENET-AS, KE
8094 47 48 18 PUKNET, ZA
327700 46 16 1 MoRENet, MZ
37215 36 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37182 14 11 3 TERNET, TZ
37654 13 1 7 RwEdNet-AS, RW
37501 11 49 6 UOFS, ZA
36982 8 33 8 UCT, ZA
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 590 2162 464 SINET-AS Research Organization of Infor
7497 443 180 24 CSTNET-AS-AP Computer Network Informati
2018 378 319 71 TENET-1, ZA
680 282 1899 249 DFN Verein zur Foerderung eines Deutsch
668 204 648 173 DNIC-AS-00668, US
36914 204 82 3 KENET-AS, KE
376 201 162 151 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
786 186 1767 183 JANET Jisc Services Limited, GB
1237 184 74 139 KREONET-AS-KR KISTI, KR
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
7497 443 419 CSTNET-AS-AP Computer Network Information Cente
2018 378 307 TENET-1, ZA
36914 204 201 KENET-AS, KE
5786 198 197 UPRENET, PR
58647 182 180 KAGAWAU-AS Kagawa University, JP
2920 175 168 LACOE, US
18558 140 136 NETBLK-RCOEK, US
8895 131 127 ISU Internet Services Unit ISU, SA
55824 129 111 NKN-CORE-NW NKN Core Network, IN
81 132 98 NCREN, US
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
11570 UNALLOCATED 63.225.1.0/24 40498 ABQG, US
394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US
18838 UNALLOCATED 168.8.240.0/20 3480 PEACHNET-AS3480, US
18838 UNALLOCATED 168.9.0.0/20 3480 PEACHNET-AS3480, US
11570 UNALLOCATED 192.94.216.0/24 40498 ABQG, US
11570 UNALLOCATED 192.207.226.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.106.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.107.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.108.0/24 40498 ABQG, US
11570 UNALLOCATED 198.59.188.0/24 40498 ABQG, US
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-badAS
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 /14:34 /15:117 /16:1977 /17:420 /18:437
/19:541 /20:808 /21:803 /22:1371 /23:1435 /24:9702
/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 191 204 KENET-AS, KE
8895 126 131 ISU Internet Services Unit ISU, SA
23024 51 108 OCDE, US
327700 40 46 MoRENet, MZ
32440 38 64 LONI, US
18632 33 66 VOLCANO-VISION, US
200521 33 56 SEAP-AGE, ES
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/ESnet/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2 5:15 6:4 8:5 12:2 14:90
18:43 23:8 24:3 31:1 35:9 38:11
40:1 41:153 42:10 44:2 45:31 46:5
47:1 49:7 50:6 52:1 59:3 60:6
61:3 62:5 63:37 64:43 65:5 66:58
67:44 68:21 69:18 70:2 71:1 72:7
74:53 76:42 77:3 78:3 79:10 80:9
81:24 82:3 83:4 84:5 85:24 89:7
91:30 93:5 94:2 95:2 97:3 98:2
101:2 102:5 103:215 104:76 107:16 108:8
109:3 114:24 116:6 117:61 118:1 119:20
121:11 123:8 124:42 125:3 128:89 129:38
130:84 131:62 132:66 133:156 134:111 136:197
137:51 138:57 139:5 140:38 141:3 142:21
143:24 144:28 145:2 146:136 147:60 148:188
149:10 150:39 151:11 152:133 153:13 154:32
155:60 156:139 157:18 158:34 159:118 160:34
161:15 162:30 163:64 164:13 165:49 166:2
167:9 168:121 169:6 170:107 172:3 173:6
174:1 175:16 177:6 179:12 180:15 181:1
182:1 184:3 185:40 186:3 187:17 188:9
189:3 190:17 191:13 192:1415 193:219 194:69
195:58 196:151 197:117 198:481 199:285 200:244
201:36 202:572 203:402 204:377 205:136 206:205
207:210 208:76 209:118 210:174 211:13 212:149
213:2 214:8 216:92 217:9 218:22 219:5
220:17 222:2 223:4
End of report
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