[REN-BGP-stats-all] Global R&E Routing Table Report - ESnet R&E view
REN Routing Table Report
cscora at frr.nsrc.org
Sun Jul 25 22:20:57 UTC 2021
Global R&E Routing Table Report 22:20 GMT Sun 25 Jul, 2021
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/ESnet/
Analysis Summary
----------------
BGP routing table entries examined: 19256
Prefixes after maximum aggregation (per Origin AS): 11205
Deaggregation factor: 1.72
Unique aggregates announced (without unneeded subnets): 12778
Total ASes present in the Internet Routing Table: 2844
Prefixes per ASN: 6.77
Origin-only ASes present in the Internet Routing Table: 2416
Origin ASes announcing only one prefix: 1101
Transit ASes present in the Internet Routing Table: 428
Transit-only ASes present in the Internet Routing Table: 86
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 17
Max AS path prepend of ASN (207352) 12
Prefixes from unregistered ASNs in the Routing Table: 43
Number of instances of unregistered ASNs: 43
Number of 32-bit ASNs allocated by the RIRs: 36704
Number of 32-bit ASNs visible in the Routing Table: 542
Prefixes from 32-bit ASNs in the Routing Table: 1563
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 5
Number of addresses announced to Internet: 179118336
Equivalent to 10 /8s, 173 /16s and 33 /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: 99.5
Total number of prefixes smaller than registry allocations: 2280
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4197
Total APNIC prefixes after maximum aggregation: 2138
APNIC Deaggregation factor: 1.96
Prefixes being announced from the APNIC address blocks: 4186
Unique aggregates announced from the APNIC address blocks: 2485
APNIC Region origin ASes present in the Internet Routing Table: 468
APNIC Prefixes per ASN: 8.94
APNIC Region origin ASes announcing only one prefix: 185
APNIC Region transit ASes present in the Internet Routing Table: 57
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: 135
Number of APNIC addresses announced to Internet: 36268288
Equivalent to 2 /8s, 41 /16s and 105 /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, 131072-147769
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: 9767
Total ARIN prefixes after maximum aggregation: 5668
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 9748
Unique aggregates announced from the ARIN address blocks: 6540
ARIN Region origin ASes present in the Internet Routing Table: 1431
ARIN Prefixes per ASN: 6.81
ARIN Region origin ASes announcing only one prefix: 521
ARIN Region transit ASes present in the Internet Routing Table: 205
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 194
Number of ARIN addresses announced to Internet: 82347264
Equivalent to 4 /8s, 232 /16s and 133 /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: 3108
Total RIPE prefixes after maximum aggregation: 2660
RIPE Deaggregation factor: 1.17
Prefixes being announced from the RIPE address blocks: 3176
Unique aggregates announced from the RIPE address blocks: 2761
RIPE Region origin ASes present in the Internet Routing Table: 649
RIPE Prefixes per ASN: 4.89
RIPE Region origin ASes announcing only one prefix: 311
RIPE Region transit ASes present in the Internet Routing Table: 104
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 17
Number of RIPE region 32-bit ASNs visible in the Routing Table: 128
Number of RIPE addresses announced to Internet: 53799936
Equivalent to 3 /8s, 52 /16s and 236 /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
196608-213403
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: 1372
Total LACNIC prefixes after maximum aggregation: 558
LACNIC Deaggregation factor: 2.46
Prefixes being announced from the LACNIC address blocks: 1371
Unique aggregates announced from the LACNIC address blocks: 761
LACNIC Region origin ASes present in the Internet Routing Table: 158
LACNIC Prefixes per ASN: 8.68
LACNIC Region origin ASes announcing only one prefix: 62
LACNIC Region transit ASes present in the Internet Routing Table: 24
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 11
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 62
Number of LACNIC addresses announced to Internet: 4129024
Equivalent to 0 /8s, 63 /16s and 1 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-272796 + 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: 769
Total AfriNIC prefixes after maximum aggregation: 156
AfriNIC Deaggregation factor: 4.93
Prefixes being announced from the AfriNIC address blocks: 770
Unique aggregates announced from the AfriNIC address blocks: 226
AfriNIC Region origin ASes present in the Internet Routing Table: 45
AfriNIC Prefixes per ASN: 17.11
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 23
Number of AfriNIC addresses announced to Internet: 2568704
Equivalent to 0 /8s, 39 /16s and 50 /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 607 2155 455 UNALLOCATED
7497 436 214 25 UNALLOCATED
1237 189 75 137 UNALLOCATED
7575 176 330 122 UNALLOCATED
58647 164 18 2 UNALLOCATED
4538 107 2368 69 UNALLOCATED
4621 81 37 10 UNALLOCATED
4762 65 4 1 UNALLOCATED
23570 59 5 11 UNALLOCATED
24151 54 4 20 UNALLOCATED
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
7896 246 51 7 UNALLOCATED
376 228 180 157 UNALLOCATED
668 206 717 172 UNALLOCATED
5786 201 16 1 UNALLOCATED
2152 157 507 90 UNALLOCATED
18558 137 18 4 UNALLOCATED
23024 113 7 20 UNALLOCATED
270 112 297 87 UNALLOCATED
2920 109 34 6 UNALLOCATED
11404 86 174 70 UNALLOCATED
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
680 272 1964 238 UNALLOCATED
786 187 1779 185 UNALLOCATED
559 116 550 107 UNALLOCATED
1103 96 1263 83 UNALLOCATED
137 82 677 77 UNALLOCATED
553 72 449 72 UNALLOCATED
2200 66 647 61 UNALLOCATED
2614 62 32 59 UNALLOCATED
1930 56 80 51 UNALLOCATED
1653 52 151 49 UNALLOCATED
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 175 207 41 UNALLOCATED
28391 152 10 66 UNALLOCATED
11340 92 24 54 UNALLOCATED
1251 65 37 20 UNALLOCATED
2715 60 102 40 UNALLOCATED
4270 44 16 1 UNALLOCATED
19611 44 17 2 UNALLOCATED
61468 41 3 15 UNALLOCATED
28614 38 2 2 UNALLOCATED
28571 37 26 15 UNALLOCATED
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 328 319 73 UNALLOCATED
327687 133 28 3 UNALLOCATED
36914 95 82 3 UNALLOCATED
8094 55 48 4 UNALLOCATED
327700 37 16 1 UNALLOCATED
6879 24 2 9 UNALLOCATED
37074 11 8 2 UNALLOCATED
37501 11 49 6 UNALLOCATED
36982 8 33 8 UNALLOCATED
2561 6 0 5 UNALLOCATED
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 607 2155 455 UNALLOCATED
7497 436 214 25 UNALLOCATED
2018 328 319 73 UNALLOCATED
680 272 1964 238 UNALLOCATED
7896 246 51 7 UNALLOCATED
376 228 180 157 UNALLOCATED
668 206 717 172 UNALLOCATED
5786 201 16 1 UNALLOCATED
1237 189 75 137 UNALLOCATED
786 187 1779 185 UNALLOCATED
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 436 411 UNALLOCATED
2018 328 255 UNALLOCATED
7896 246 239 UNALLOCATED
5786 201 200 UNALLOCATED
58647 164 162 UNALLOCATED
1916 175 134 UNALLOCATED
18558 137 133 UNALLOCATED
327687 133 130 UNALLOCATED
2920 109 103 UNALLOCATED
23024 113 93 UNALLOCATED
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
19176 UNALLOCATED 63.81.146.0/24 32278 UNALLOCATED
19176 UNALLOCATED 63.108.136.0/23 32278 UNALLOCATED
19176 UNALLOCATED 63.108.136.0/24 32278 UNALLOCATED
19176 UNALLOCATED 63.108.137.0/24 32278 UNALLOCATED
19176 UNALLOCATED 63.108.138.0/24 32278 UNALLOCATED
19176 UNALLOCATED 63.127.160.0/22 32278 UNALLOCATED
19176 UNALLOCATED 63.127.161.0/24 32278 UNALLOCATED
19176 UNALLOCATED 63.127.162.0/24 32278 UNALLOCATED
19176 UNALLOCATED 63.127.163.0/24 32278 UNALLOCATED
19176 UNALLOCATED 63.127.168.0/21 32278 UNALLOCATED
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 1103 UNALLOCATED
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-dsua
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
164.160.240.0/20 Origin: 328439 UNALLOCATED
Transit: 327992 UNALLOCATED
192.31.196.0/24 Origin: 112 UNALLOCATED
Transit: 1103 UNALLOCATED
192.88.99.0/24 Origin: 1103 UNALLOCATED
Transit: 293 UNALLOCATED
192.107.242.0/24 Origin: 394784 UNALLOCATED
Transit: 40831 UNALLOCATED
205.166.145.0/24 Origin: 394784 UNALLOCATED
Transit: 40831 UNALLOCATED
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 /14:37 /15:118 /16:2052 /17:388 /18:434
/19:618 /20:945 /21:997 /22:1573 /23:1615 /24:10479
/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 82 95 UNALLOCATED
30041 64 64 UNALLOCATED
23024 53 113 UNALLOCATED
28614 32 38 UNALLOCATED
25977 31 45 UNALLOCATED
327700 31 37 UNALLOCATED
18530 30 78 UNALLOCATED
263282 30 37 UNALLOCATED
16713 29 36 UNALLOCATED
18632 29 55 UNALLOCATED
Complete listing at https://bgp.nsrc.org/REN/ESnet/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:5 5:15 6:4 8:5 12:1 18:41
23:17 24:5 31:6 35:1 37:6 38:19
40:1 41:110 42:26 44:5 45:37 46:8
47:1 49:6 50:12 52:29 58:1 59:20
60:4 61:4 62:6 63:86 64:131 65:15
66:79 67:60 68:19 69:59 70:1 71:1
72:50 74:33 75:1 76:38 77:6 78:3
79:10 80:14 81:32 82:4 83:7 84:4
85:33 86:3 87:2 88:1 89:10 91:34
92:1 93:12 94:5 95:5 96:5 97:1
98:4 101:2 102:6 103:189 104:85 106:1
107:30 108:10 109:3 110:3 111:20 112:4
114:23 115:1 116:4 117:61 118:35 119:19
121:29 122:8 123:8 124:43 125:13 128:81
129:174 130:95 131:100 132:60 133:137 134:93
136:212 137:148 138:10 139:5 140:46 141:3
142:42 143:35 144:32 146:197 147:71 148:161
149:14 150:41 151:7 152:80 153:11 154:22
155:51 156:64 157:28 158:10 159:117 160:31
161:56 162:44 163:63 164:23 165:16 166:2
167:16 168:139 169:9 170:68 171:1 172:2
173:23 174:7 175:32 177:7 178:1 179:12
180:6 181:11 182:5 184:7 185:39 186:3
187:17 188:13 189:6 190:40 191:30 192:1474
193:199 194:129 195:57 196:163 197:4 198:538
199:319 200:252 201:39 202:594 203:414 204:402
205:182 206:216 207:186 208:117 209:138 210:184
211:14 212:38 213:4 214:7 216:95 217:16
218:26 219:8 220:21 222:4 223:2
End of report
More information about the ren-bgp-stats-all
mailing list