[SANOG] Weekly Global IPv4 Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Oct 15 18:03:03 UTC 2021
This is an automated weekly mailing describing the state of the Internet
Global IPv4 Routing Table as seen from APNIC's router in Japan.
The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG.
Daily listings are sent to bgp-stats at lists.apnic.net
For historical data, please see http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
Global IPv4 Routing Table Report 04:00 +10GMT Sat 16 Oct, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 866541
Prefixes after maximum aggregation (per Origin AS): 329021
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 418843
Total ASes present in the Internet Routing Table: 72090
Prefixes per ASN: 12.02
Origin-only ASes present in the Internet Routing Table: 61921
Origin ASes announcing only one prefix: 25538
Transit ASes present in the Internet Routing Table: 10169
Transit-only ASes present in the Internet Routing Table: 346
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 53
Max AS path prepend of ASN (265020) 50
Prefixes from unregistered ASNs in the Routing Table: 949
Number of instances of unregistered ASNs: 953
Number of 32-bit ASNs allocated by the RIRs: 37511
Number of 32-bit ASNs visible in the Routing Table: 31156
Prefixes from 32-bit ASNs in the Routing Table: 144954
Number of bogon 32-bit ASNs visible in the Routing Table: 22
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 453
Number of addresses announced to Internet: 3071273216
Equivalent to 183 /8s, 15 /16s and 233 /24s
Percentage of available address space announced: 83.0
Percentage of allocated address space announced: 83.0
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: 287833
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 231909
Total APNIC prefixes after maximum aggregation: 66335
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 227300
Unique aggregates announced from the APNIC address blocks: 92166
APNIC Region origin ASes present in the Internet Routing Table: 12027
APNIC Prefixes per ASN: 18.90
APNIC Region origin ASes announcing only one prefix: 3424
APNIC Region transit ASes present in the Internet Routing Table: 1698
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7196
Number of APNIC addresses announced to Internet: 772900480
Equivalent to 46 /8s, 17 /16s and 134 /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: 254057
Total ARIN prefixes after maximum aggregation: 116852
ARIN Deaggregation factor: 2.17
Prefixes being announced from the ARIN address blocks: 254037
Unique aggregates announced from the ARIN address blocks: 121712
ARIN Region origin ASes present in the Internet Routing Table: 18900
ARIN Prefixes per ASN: 13.44
ARIN Region origin ASes announcing only one prefix: 6843
ARIN Region transit ASes present in the Internet Routing Table: 1946
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4157
Number of ARIN addresses announced to Internet: 1301327616
Equivalent to 77 /8s, 144 /16s and 175 /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: 241320
Total RIPE prefixes after maximum aggregation: 113069
RIPE Deaggregation factor: 2.13
Prefixes being announced from the RIPE address blocks: 237460
Unique aggregates announced from the RIPE address blocks: 145857
RIPE Region origin ASes present in the Internet Routing Table: 28082
RIPE Prefixes per ASN: 8.46
RIPE Region origin ASes announcing only one prefix: 12098
RIPE Region transit ASes present in the Internet Routing Table: 3905
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10464
Number of RIPE addresses announced to Internet: 711908736
Equivalent to 42 /8s, 110 /16s and 221 /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: 111706
Total LACNIC prefixes after maximum aggregation: 26844
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 112587
Unique aggregates announced from the LACNIC address blocks: 47589
LACNIC Region origin ASes present in the Internet Routing Table: 10781
LACNIC Prefixes per ASN: 10.44
LACNIC Region origin ASes announcing only one prefix: 2629
LACNIC Region transit ASes present in the Internet Routing Table: 2131
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 53
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8450
Number of LACNIC addresses announced to Internet: 176566272
Equivalent to 10 /8s, 134 /16s and 48 /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: 26600
Total AfriNIC prefixes after maximum aggregation: 5210
AfriNIC Deaggregation factor: 5.11
Prefixes being announced from the AfriNIC address blocks: 34704
Unique aggregates announced from the AfriNIC address blocks: 11141
AfriNIC Region origin ASes present in the Internet Routing Table: 1559
AfriNIC Prefixes per ASN: 22.26
AfriNIC Region origin ASes announcing only one prefix: 544
AfriNIC Region transit ASes present in the Internet Routing Table: 312
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 889
Number of AfriNIC addresses announced to Internet: 108256000
Equivalent to 6 /8s, 115 /16s and 219 /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
9808 8044 9000 57 CMNET-GD Guangdong Mobile Communication
7545 5852 787 682 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4661 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3617 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3505 1022 56 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3039 1896 55 VNPT-AS-VN VNPT Corp, VN
4766 2507 11119 578 KIXS-AS-KR Korea Telecom, KR
9498 2162 472 237 BBIL-AP BHARTI Airtel Ltd., IN
45090 2127 1198 75 CNNIC-TENCENT-NET-AP Shenzhen Tencent C
4755 2126 429 203 TATACOMM-AS TATA Communications formerl
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 5764 9986 2516 AMAZON-02, US
11492 4675 309 786 CABLEONE, US
22773 4086 3056 375 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3950 264 30 VIASAT-SP-BACKBONE, US
16625 3638 1882 2536 AKAMAI-AS, US
6327 3371 1318 69 SHAW, CA
30036 2576 373 244 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2531 5028 450 CENTURYLINK-US-LEGACY-QWEST, US
20115 2242 3032 504 CHARTER-20115, US
7018 2235 24164 1427 ATT-INTERNET4, US
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
12479 6845 1726 143 UNI2-AS, ES
20940 3878 3348 216 AKAMAI-ASN1, NL
8551 3289 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
39891 3271 187 23 ALJAWWALSTC-AS, SA
12389 2929 2283 898 ROSTELECOM-AS, RU
9009 2491 259 1315 M247, GB
34984 2240 358 602 TELLCOM-AS, TR
58224 1691 901 579 TCI, IR
61317 1656 241 917 ASDETUK www.heficed.com, GB
13188 1610 100 27 TRIOLAN, UA
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 8874 3458 571 Uninet S.A. de C.V., MX
10620 3415 520 717 Telmex Colombia S.A., CO
11830 2498 369 62 Instituto Costarricense de Electricidad
13999 1669 330 465 Mega Cable, S.A. de C.V., MX
6503 1522 359 477 Axtel, S.A.B. de C.V., MX
28573 1465 2309 244 CLARO S.A., BR
3816 1240 651 153 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1119 2351 135 TIM SA, BR
6147 1088 369 22 Telefonica del Peru S.A.A., PE
11172 956 111 69 Alestra, S. de R.L. de C.V., MX
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1636 393 21 LINKdotNET-AS, EG
24835 1550 503 32 RAYA-AS, EG
36992 1287 1418 270 ETISALAT-MISR, EG
36903 1183 537 110 MT-MPLS, MA
29571 800 68 11 ORANGE-COTE-IVOIRE, CI
36935 630 523 44 Vodafone-, EG
6713 612 1863 34 IAM-AS, MA
15399 509 50 31 WANANCHI-, KE
37342 471 32 1 MOVITEL, MZ
2018 344 319 73 TENET-1, ZA
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 8874 3458 571 Uninet S.A. de C.V., MX
9808 8044 9000 57 CMNET-GD Guangdong Mobile Communication
12479 6845 1726 143 UNI2-AS, ES
7545 5852 787 682 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 5764 9986 2516 AMAZON-02, US
11492 4675 309 786 CABLEONE, US
4538 4661 4192 74 ERX-CERNET-BKB China Education and Rese
22773 4086 3056 375 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3950 264 30 VIASAT-SP-BACKBONE, US
20940 3878 3348 216 AKAMAI-ASN1, NL
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 8044 7987 CMNET-GD Guangdong Mobile Communication Co.Ltd.
12479 6845 6702 UNI2-AS, ES
7545 5852 5170 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4661 4587 ERX-CERNET-BKB China Education and Research Net
7155 3950 3920 VIASAT-SP-BACKBONE, US
11492 4675 3889 CABLEONE, US
22773 4086 3711 ASN-CXA-ALL-CCI-22773-RDC, US
20940 3878 3662 AKAMAI-ASN1, NL
7552 3617 3597 VIETEL-AS-AP Viettel Group, VN
7713 3505 3449 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
398418 UNALLOCATED 8.2.200.0/24 2914 NTT-COMMUNICATIONS-2914, US
46990 UNALLOCATED 8.5.242.0/23 3356 LEVEL3, US
62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US
393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US
18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US
394936 UNALLOCATED 8.33.224.0/24 174 COGENT-174, US
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US
23061 UNALLOCATED 8.39.119.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 46887 LIGHTOWER, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 6939 HURRICANE, US
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.132.208.0/24 Origin: 7850 CITYLINKFIBER, US
23.132.208.0/24 Transit: 15164 UPNLLC, US
23.141.0.0/24 Origin: 395350 UNASSIGNED
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
27.100.7.0/24 Origin: 56096 UNASSIGNED
27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet
41.57.124.0/22 Origin: 37442 UNASSIGNED
41.57.124.0/22 Transit: 174 COGENT-174, US
41.57.124.0/23 Origin: 37442 UNASSIGNED
41.57.124.0/23 Transit: 37204 TELONE, ZW
Complete listing at http://thyme.rand.apnic.net/current/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 /8:16 /9:13 /10:41 /11:99 /12:300
/13:597 /14:1216 /15:2046 /16:13596 /17:8321 /18:14067
/19:25507 /20:42772 /21:51099 /22:107303 /23:92738 /24:505363
/25:1447 /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
12479 5806 6845 UNI2-AS, ES
11492 3616 4675 CABLEONE, US
8151 3265 8874 Uninet S.A. de C.V., MX
6327 3179 3371 SHAW, CA
7155 3040 3950 VIASAT-SP-BACKBONE, US
22773 3018 4086 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2807 3271 ALJAWWALSTC-AS, SA
8551 2755 3289 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2229 2576 MEDIACOM-ENTERPRISE-BUSINESS, US
11830 1931 2498 Instituto Costarricense de Electricidad y Telec
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1926 2:1052 3:145 4:19 5:3647 6:85
7:5 8:1552 9:1 11:172 12:1717 13:406
14:2295 15:115 16:24 17:370 18:125 20:126
21:4 22:188 23:5189 24:2430 25:2 27:2551
29:19 31:2359 32:112 34:1 35:47 36:1727
37:3899 38:2296 39:611 40:151 41:3838 42:1039
43:2063 44:293 45:15456 46:3673 47:320 48:3
49:1677 50:1835 51:100 52:1301 54:248 55:739
56:4 57:55 58:1741 59:1181 60:937 61:2288
62:2330 63:1964 64:5369 65:2354 66:4953 67:2866
68:1162 69:4121 70:1360 71:678 72:3156 74:2620
75:1492 76:694 77:2036 78:1734 79:2630 80:1864
81:1527 82:1381 83:1164 84:1294 85:2819 86:718
87:1859 88:977 89:3043 90:508 91:7372 92:1829
93:2563 94:3139 95:3541 96:1297 97:347 98:978
99:949 100:75 101:1041 102:1711 103:27145 104:4058
105:439 106:827 107:2379 108:734 109:3866 110:2041
111:3098 112:1940 113:1410 114:1472 115:1931 116:1897
117:2424 118:2314 119:1893 120:1563 121:1079 122:2536
123:2167 124:1600 125:2048 128:1386 129:1304 130:904
131:2024 132:745 133:364 134:1862 135:318 136:791
137:856 138:2400 139:1190 140:721 141:1267 142:1197
143:1373 144:1267 145:326 146:1555 147:1428 148:2209
149:1489 150:831 151:1087 152:1653 153:429 154:3160
155:1334 156:1757 157:1187 158:1004 159:2045 160:2342
161:1244 162:3349 163:1083 164:1629 165:1467 166:592
167:1657 168:3645 169:689 170:4340 171:807 172:2760
173:2958 174:1000 175:1116 176:3344 177:4539 178:3009
179:1915 180:2255 181:2679 182:3121 183:2011 184:2417
185:18926 186:4209 187:3173 188:3444 189:2906 190:8633
191:1314 192:10695 193:8382 194:6845 195:4871 196:2890
197:2132 198:6031 199:5926 200:7335 201:5492 202:10488
203:10061 204:4512 205:3387 206:4062 207:3354 208:3996
209:4735 210:4199 211:2354 212:3750 213:3371 214:1165
215:61 216:6376 217:2624 218:1219 219:650 220:1947
221:977 222:853 223:2052
End of report
More information about the sanog
mailing list