[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ESnet (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Wed Feb 14 22:20:35 UTC 2024
IPv4 R&E Routing Table Report 22:20 GMT Wed 14 Feb, 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: 18676
Prefixes after maximum aggregation (per Origin AS): 10566
Deaggregation factor: 1.77
Unique aggregates announced (without unneeded subnets): 11690
Number of IPv4 prefixes with a valid ROA: 5867
Number of IPv4 prefixes with an invalid ROA: 33
Number of IPv4 prefixes with no ROA: 12776
Total ASes present in the Internet Routing Table: 2719
Prefixes per ASN: 6.87
Origin-only ASes present in the Internet Routing Table: 2361
Origin ASes announcing only one prefix: 1059
Transit ASes present in the Internet Routing Table: 358
Transit-only ASes present in the Internet Routing Table: 63
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: 18
Number of instances of unregistered ASNs: 18
Number of 32-bit ASNs allocated by the RIRs: 43624
Number of 32-bit ASNs visible in the Routing Table: 633
Prefixes from 32-bit ASNs in the Routing Table: 1932
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: 176317696
Equivalent to 10 /8s, 130 /16s and 101 /24s
Percentage of available address space announced: 4.8
Percentage of allocated address space announced: 4.8
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: 2268
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4238
Total APNIC prefixes after maximum aggregation: 2144
APNIC Deaggregation factor: 1.98
Prefixes being announced from the APNIC address blocks: 4239
Unique aggregates announced from the APNIC address blocks: 2413
APNIC Region origin ASes present in the Internet Routing Table: 490
APNIC Prefixes per ASN: 8.65
APNIC Region origin ASes announcing only one prefix: 218
APNIC Region transit ASes present in the Internet Routing Table: 44
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 11
Number of APNIC region 32-bit ASNs visible in the Routing Table: 185
Number of APNIC addresses announced to Internet: 35393792
Equivalent to 2 /8s, 28 /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: 8373
Total ARIN prefixes after maximum aggregation: 4923
ARIN Deaggregation factor: 1.70
Prefixes being announced from the ARIN address blocks: 8403
Unique aggregates announced from the ARIN address blocks: 5514
ARIN Region origin ASes present in the Internet Routing Table: 1301
ARIN Prefixes per ASN: 6.46
ARIN Region origin ASes announcing only one prefix: 464
ARIN Region transit ASes present in the Internet Routing Table: 165
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: 214
Number of ARIN addresses announced to Internet: 80252160
Equivalent to 4 /8s, 200 /16s and 141 /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, 393216-401308
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: 3463
Total RIPE prefixes after maximum aggregation: 2779
RIPE Deaggregation factor: 1.25
Prefixes being announced from the RIPE address blocks: 3452
Unique aggregates announced from the RIPE address blocks: 2832
RIPE Region origin ASes present in the Internet Routing Table: 658
RIPE Prefixes per ASN: 5.25
RIPE Region origin ASes announcing only one prefix: 296
RIPE Region transit ASes present in the Internet Routing Table: 98
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: 143
Number of RIPE addresses announced to Internet: 53912832
Equivalent to 3 /8s, 54 /16s and 165 /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: 1321
Total LACNIC prefixes after maximum aggregation: 528
LACNIC Deaggregation factor: 2.50
Prefixes being announced from the LACNIC address blocks: 1319
Unique aggregates announced from the LACNIC address blocks: 705
LACNIC Region origin ASes present in the Internet Routing Table: 154
LACNIC Prefixes per ASN: 8.56
LACNIC Region origin ASes announcing only one prefix: 56
LACNIC Region transit ASes present in the Internet Routing Table: 24
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: 66
Number of LACNIC addresses announced to Internet: 4086784
Equivalent to 0 /8s, 62 /16s and 92 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-273820 + 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: 1263
Total AfriNIC prefixes after maximum aggregation: 177
AfriNIC Deaggregation factor: 7.14
Prefixes being announced from the AfriNIC address blocks: 1263
Unique aggregates announced from the AfriNIC address blocks: 226
AfriNIC Region origin ASes present in the Internet Routing Table: 49
AfriNIC Prefixes per ASN: 25.78
AfriNIC Region origin ASes announcing only one prefix: 25
AfriNIC Region transit ASes present in the Internet Routing Table: 8
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 8
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25
Number of AfriNIC addresses announced to Internet: 2672128
Equivalent to 0 /8s, 40 /16s and 198 /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 439 180 23 CSTNET-AS-AP Computer Network Informati
1237 189 74 139 KREONET-AS-KR KISTI, KR
58647 181 18 2 KAGAWAU-AS Kagawa University, JP
7575 176 329 119 AARNET-AS-AP Australian Academic and Re
55824 128 19 18 NKN-CORE-NW NKN Core Network, IN
4538 110 2368 68 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
668 203 648 172 DNIC-AS-00668, US
376 200 162 150 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
2152 146 507 95 CSUNET-NW, US
18558 141 18 4 NETBLK-RCOEK, US
81 125 473 31 NCREN, US
270 114 328 78 AS270, US
23024 109 7 22 OCDE, US
2920 102 34 7 LACOE, US
237 89 544 54 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 249 DFN Verein zur Foerderung eines Deutsch
786 184 1767 181 JANET Jisc Services Limited, GB
8895 133 24 4 ISU Internet Services Unit ISU, SA
559 114 533 104 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
553 78 462 78 BELWUE BelWue-Koordination, DE
1930 78 88 73 RCCN Fundacao para a Ciencia e a Tecnol
3267 77 44 68 RUNNET, 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
28391 154 10 67 Universidad Juarez Autonoma de Tabasco,
1916 149 176 42 Rede Nacional de Ensino e Pesquisa, BR
11340 104 24 49 Red Universitaria Nacional, CL
271640 68 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
19611 48 17 2 Associacao Antonio Vieira - Unisinos, B
4270 47 16 1 Red de Interconexion Universitaria, AR
61468 43 3 14 CEDIA, EC
2715 42 99 32 Fundacao Carlos Chagas Filho de Amparo
28614 38 2 2 Fundacao Universidade Regional de Blume
1251 35 32 25 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
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 482 82 3 KENET-AS, KE
2018 381 319 71 TENET-1, ZA
327687 160 28 3 RENU, UG
8094 47 48 18 PUKNET, ZA
327700 43 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37074 13 8 2 UG-AS, GH
37501 11 49 6 UOFS, ZA
37654 11 1 6 RwEdNet-AS, RW
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
36914 482 82 3 KENET-AS, KE
7497 439 180 23 CSTNET-AS-AP Computer Network Informati
2018 381 319 71 TENET-1, ZA
680 283 1899 249 DFN Verein zur Foerderung eines Deutsch
668 203 648 172 DNIC-AS-00668, US
376 200 162 150 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
1237 189 74 139 KREONET-AS-KR KISTI, KR
786 184 1767 181 JANET Jisc Services Limited, GB
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 482 479 KENET-AS, KE
7497 439 416 CSTNET-AS-AP Computer Network Information Cente
2018 381 310 TENET-1, ZA
5786 198 197 UPRENET, PR
58647 181 179 KAGAWAU-AS Kagawa University, JP
327687 160 157 RENU, UG
18558 141 137 NETBLK-RCOEK, US
8895 133 129 ISU Internet Services Unit ISU, SA
55824 128 110 NKN-CORE-NW NKN Core Network, IN
1916 149 107 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
11570 UNALLOCATED 63.225.1.0/24 40498 ABQG, US
26303 UNALLOCATED 76.165.220.0/24 32440 LONI, US
26303 UNALLOCATED 76.165.221.0/24 32440 LONI, US
26303 UNALLOCATED 76.165.222.0/24 32440 LONI, US
394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, 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
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 /14:35 /15:121 /16:2019 /17:429 /18:447
/19:581 /20:842 /21:876 /22:1491 /23:1535 /24:10300
/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 467 482 KENET-AS, KE
8895 128 133 ISU Internet Services Unit ISU, SA
23024 52 109 OCDE, US
32440 38 62 LONI, US
327700 38 43 MoRENet, MZ
3267 35 77 RUNNET, RU
18632 34 66 VOLCANO-VISION, US
200521 33 56 SEAP-AGE, ES
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
46115 32 35 LUTHER, 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 14:89
18:44 23:8 24:3 31:1 35:7 38:10
40:1 41:177 42:10 44:6 45:38 46:5
47:1 49:7 50:8 52:1 58:1 59:3
60:6 61:3 62:8 63:37 64:44 65:19
66:60 67:45 68:20 69:17 70:2 71:1
72:7 74:53 76:42 77:11 78:3 79:10
80:12 81:25 82:6 83:7 84:7 85:31
86:1 87:1 89:10 91:43 92:2 93:17
94:2 95:2 97:3 98:2 101:2 102:35
103:209 104:77 107:16 108:8 109:4 114:24
116:6 117:61 119:19 121:11 123:8 124:40
125:5 128:82 129:44 130:85 131:65 132:59
133:155 134:110 136:197 137:136 138:57 139:5
140:38 141:3 142:35 143:23 144:28 145:2
146:131 147:59 148:195 149:12 150:40 151:14
152:130 153:13 154:30 155:63 156:67 157:18
158:32 159:115 160:34 161:16 162:30 163:72
164:13 165:47 166:2 167:13 168:118 169:7
170:103 171:1 172:3 173:7 174:1 175:17
177:6 179:11 180:15 181:1 182:1 184:3
185:46 186:3 187:17 188:14 189:3 190:17
191:13 192:1486 193:258 194:122 195:63 196:201
197:330 198:485 199:288 200:265 201:36 202:574
203:405 204:373 205:130 206:190 207:162 208:77
209:122 210:184 211:13 212:162 213:5 214:8
216:92 217:10 218:22 219:5 220:17 222:2
223:4
End of report
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