[afnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Mar 17 18:03:09 UTC 2023
This is an automated weekly mailing describing the state of the 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 https://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
IPv4 Routing Table Report 04:00 +10GMT Sat 18 Mar, 2023
BGP Table (Global) as seen in Japan.
Report Website: https://thyme.apnic.net
Detailed Analysis: https://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 915803
Prefixes after maximum aggregation (per Origin AS): 347771
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 446837
Total ASes present in the Internet Routing Table: 74244
Prefixes per ASN: 12.34
Origin-only ASes present in the Internet Routing Table: 63706
Origin ASes announcing only one prefix: 26134
Transit ASes present in the Internet Routing Table: 10538
Transit-only ASes present in the Internet Routing Table: 451
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 55
Max AS path prepend of ASN (265020) 50
Prefixes from unregistered ASNs in the Routing Table: 1100
Number of instances of unregistered ASNs: 1115
Number of 32-bit ASNs allocated by the RIRs: 41464
Number of 32-bit ASNs visible in the Routing Table: 34345
Prefixes from 32-bit ASNs in the Routing Table: 168511
Number of bogon 32-bit ASNs visible in the Routing Table: 68
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 525
Number of addresses announced to Internet: 3063819264
Equivalent to 182 /8s, 158 /16s and 44 /24s
Percentage of available address space announced: 82.8
Percentage of allocated address space announced: 82.8
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: 306446
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 241990
Total APNIC prefixes after maximum aggregation: 69156
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 236593
Unique aggregates announced from the APNIC address blocks: 97811
APNIC Region origin ASes present in the Internet Routing Table: 13365
APNIC Prefixes per ASN: 17.70
APNIC Region origin ASes announcing only one prefix: 3904
APNIC Region transit ASes present in the Internet Routing Table: 1786
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 38
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8647
Number of APNIC addresses announced to Internet: 773747584
Equivalent to 46 /8s, 30 /16s and 115 /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, 131072-151865
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: 268067
Total ARIN prefixes after maximum aggregation: 122019
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 270188
Unique aggregates announced from the ARIN address blocks: 130292
ARIN Region origin ASes present in the Internet Routing Table: 19066
ARIN Prefixes per ASN: 14.17
ARIN Region origin ASes announcing only one prefix: 6963
ARIN Region transit ASes present in the Internet Routing Table: 1963
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4758
Number of ARIN addresses announced to Internet: 1286591232
Equivalent to 76 /8s, 175 /16s and 211 /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: 257872
Total RIPE prefixes after maximum aggregation: 121512
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 254293
Unique aggregates announced from the RIPE address blocks: 157170
RIPE Region origin ASes present in the Internet Routing Table: 28269
RIPE Prefixes per ASN: 9.00
RIPE Region origin ASes announcing only one prefix: 12022
RIPE Region transit ASes present in the Internet Routing Table: 3955
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 38
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11091
Number of RIPE addresses announced to Internet: 718396288
Equivalent to 42 /8s, 209 /16s and 219 /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: 117489
Total LACNIC prefixes after maximum aggregation: 28509
LACNIC Deaggregation factor: 4.12
Prefixes being announced from the LACNIC address blocks: 116871
Unique aggregates announced from the LACNIC address blocks: 48990
LACNIC Region origin ASes present in the Internet Routing Table: 10976
LACNIC Prefixes per ASN: 10.65
LACNIC Region origin ASes announcing only one prefix: 2650
LACNIC Region transit ASes present in the Internet Routing Table: 2288
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 55
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8778
Number of LACNIC addresses announced to Internet: 176575232
Equivalent to 10 /8s, 134 /16s and 83 /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: 29285
Total AfriNIC prefixes after maximum aggregation: 5792
AfriNIC Deaggregation factor: 5.06
Prefixes being announced from the AfriNIC address blocks: 37333
Unique aggregates announced from the AfriNIC address blocks: 12155
AfriNIC Region origin ASes present in the Internet Routing Table: 1726
AfriNIC Prefixes per ASN: 21.63
AfriNIC Region origin ASes announcing only one prefix: 595
AfriNIC Region transit ASes present in the Internet Routing Table: 334
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 40
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1071
Number of AfriNIC addresses announced to Internet: 108120320
Equivalent to 6 /8s, 113 /16s and 201 /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 9472 8884 51 CHINAMOBILE-CN China Mobile Communicati
7545 5759 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4862 4192 75 ERX-CERNET-BKB China Education and Rese
7713 3531 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon
7552 3460 1331 21 VIETEL-AS-AP Viettel Group, VN
45899 3364 1874 95 VNPT-AS-VN VNPT Corp, VN
9498 2851 499 238 BBIL-AP BHARTI Airtel Ltd., IN
4766 2555 11251 591 KIXS-AS-KR Korea Telecom, KR
24560 2361 837 441 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
45090 2184 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute
Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 8098 10765 2858 AMAZON-02, US
11492 4530 300 621 CABLEONE, US
7155 3966 279 45 VIASAT-SP-BACKBONE, US
22773 3650 3065 299 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3506 1320 64 SHAW, CA
16625 3174 1597 2343 AKAMAI-AS, US
749 3037 50520 2304 DNIC-AS-00749, US
396982 2621 3587 354 GOOGLE-CLOUD-PLATFORM, US
7018 2558 24118 1564 ATT-INTERNET4, US
30036 2506 361 490 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
12479 7067 1705 149 UNI2-AS, ES
39891 4833 286 59 ALJAWWALSTC-AS, SA
20940 4042 3399 164 AKAMAI-ASN1, NL
8551 3887 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2955 2292 912 ROSTELECOM-AS, RU
9009 2634 250 1382 M247, RO
34984 2268 359 610 TELLCOM-AS, TR
6849 2164 339 19 UKRTELNET, UA
58224 1848 949 545 TCI, IR
13188 1607 100 27 TRIOLAN, UA
Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 11174 3340 584 Uninet S.A. de C.V., MX
10620 3474 504 880 Telmex Colombia S.A., CO
13999 2290 373 612 Mega Cable, S.A. de C.V., MX
11830 2264 369 64 Instituto Costarricense de Electricidad
28573 1371 2325 248 Claro NXT Telecomunicacoes Ltda, BR
3816 1301 763 161 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6503 1298 339 513 Axtel, S.A.B. de C.V., MX
6147 1130 370 22 Telefonica del Peru S.A.A., PE
11664 1100 180 459 Techtel LMDS Comunicaciones Interactiva
26615 1029 2498 45 TIM SA, BR
Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1564 393 19 LINKdotNET-AS, EG
24835 1542 533 30 RAYA-AS, EG
36992 1343 1518 275 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1017 67 53 ORANGE-COTE-IVOIRE, CI
36935 868 520 42 Vodafone-, EG
6713 550 1861 34 IAM-AS, MA
15399 506 54 48 WANANCHI-, KE
24757 495 73 5 EthioNet-AS, ET
37342 493 32 1 MOVITEL, MZ
Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 11174 3340 584 Uninet S.A. de C.V., MX
9808 9472 8884 51 CHINAMOBILE-CN China Mobile Communicati
16509 8098 10765 2858 AMAZON-02, US
12479 7067 1705 149 UNI2-AS, ES
7545 5759 786 691 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4862 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4833 286 59 ALJAWWALSTC-AS, SA
11492 4530 300 621 CABLEONE, US
20940 4042 3399 164 AKAMAI-ASN1, NL
7155 3966 279 45 VIASAT-SP-BACKBONE, US
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 9472 9421 CHINAMOBILE-CN China Mobile Communications Grou
12479 7067 6918 UNI2-AS, ES
16509 8098 5240 AMAZON-02, US
7545 5759 5068 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4862 4787 ERX-CERNET-BKB China Education and Research Net
39891 4833 4774 ALJAWWALSTC-AS, SA
7155 3966 3921 VIASAT-SP-BACKBONE, US
11492 4530 3909 CABLEONE, US
20940 4042 3878 AKAMAI-ASN1, NL
8551 3887 3850 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
Complete listing at https://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V.,
33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US
12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M
53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US
62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US
393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US
396894 UNALLOCATED 8.28.201.0/24 46887 LIGHTOWER, US
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US
18798 UNALLOCATED 8.40.106.0/24 6461 ZAYO-6461, US
Complete listing at https://thyme.apnic.net/current/data-badAS
Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 6939 HURRICANE, US
Complete listing at https://thyme.apnic.net/current/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.131.185.0/24 Origin: 174 COGENT-174, US
23.131.185.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.131.186.0/24 Origin: 174 COGENT-174, US
23.131.186.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.131.187.0/24 Origin: 174 COGENT-174, US
23.131.187.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.131.188.0/24 Origin: 174 COGENT-174, US
23.131.188.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.136.112.0/24 Origin: 54835 UNASSIGNED
23.136.112.0/24 Transit: 21559 OSNET, PR
Complete listing at https://thyme.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 /10:39 /11:103 /12:299
/13:579 /14:1201 /15:2042 /16:13482 /17:8275 /18:13848
/19:25223 /20:44271 /21:51582 /22:109717 /23:97592 /24:546780
/25:741 /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 6125 7067 UNI2-AS, ES
8151 5140 11174 Uninet S.A. de C.V., MX
39891 3632 4833 ALJAWWALSTC-AS, SA
11492 3438 4530 CABLEONE, US
8551 3359 3887 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
6327 3314 3506 SHAW, CA
7155 3041 3966 VIASAT-SP-BACKBONE, US
22773 2697 3650 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2164 2506 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2028 3474 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1699 2:1227 3:170 4:5 5:4422 6:118
7:6 8:1553 9:1 11:172 12:1575 13:395
14:2322 15:296 16:111 17:368 18:401 20:249
21:4 22:188 23:6122 24:2505 25:6 27:2492
29:19 31:2507 32:104 34:10 35:107 36:1910
37:4623 38:4364 39:807 40:150 41:3989 42:966
43:2335 44:312 45:16456 46:4247 47:379 49:1752
50:1839 51:570 52:1587 54:389 55:867 56:8
57:90 58:1750 59:1129 60:972 61:2438 62:2641
63:1934 64:5663 65:2317 66:4932 67:3023 68:1365
69:4127 70:1268 71:665 72:2973 74:2600 75:1459
76:608 77:2427 78:1855 79:3166 80:2064 81:1741
82:1503 83:1231 84:1528 85:2998 86:748 87:1959
88:1246 89:3621 90:612 91:7672 92:2020 93:2571
94:3556 95:3959 96:1327 97:332 98:1165 99:748
100:77 101:1070 102:2645 103:31116 104:4604 105:481
106:907 107:2553 108:985 109:4388 110:2071 111:3241
112:2061 113:1558 114:1629 115:2027 116:1918 117:2542
118:2279 119:1979 120:1769 121:1119 122:2596 123:2181
124:1621 125:2485 128:1307 129:1069 130:1007 131:2001
132:799 133:422 134:1902 135:301 136:867 137:935
138:2558 139:1522 140:1202 141:1473 142:1438 143:1502
144:1165 145:356 146:1919 147:1565 148:2261 149:1959
150:872 151:1147 152:1849 153:488 154:4272 155:1419
156:1688 157:1278 158:1053 159:2268 160:2540 161:1474
162:3541 163:1505 164:1596 165:1684 166:859 167:1708
168:3889 169:933 170:4603 171:888 172:3502 173:2937
174:1023 175:1165 176:3682 177:4611 178:3635 179:2184
180:2405 181:3416 182:3353 183:1932 184:2351 185:20157
186:4681 187:3977 188:4093 189:3594 190:9134 191:1460
192:10967 193:8823 194:7254 195:5148 196:3091 197:2387
198:5963 199:6096 200:7846 201:5876 202:10760 203:10195
204:4626 205:3540 206:3904 207:3457 208:4092 209:4872
210:4452 211:2500 212:4093 213:3545 214:1094 215:58
216:6597 217:2659 218:1287 219:580 220:2014 221:974
222:878 223:2167
End of report
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