[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Nov 24 18:02:14 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
UKNOF, 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 25 Nov, 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: 935642
Prefixes after maximum aggregation (per Origin AS): 356140
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 454675
Total ASes present in the Internet Routing Table: 75088
Prefixes per ASN: 12.46
Origin-only ASes present in the Internet Routing Table: 64431
Origin ASes announcing only one prefix: 26523
Transit ASes present in the Internet Routing Table: 10657
Transit-only ASes present in the Internet Routing Table: 478
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 55
Max AS path prepend of ASN (265020) 50
Prefixes from unregistered ASNs in the Routing Table: 1036
Number of instances of unregistered ASNs: 1038
Number of 32-bit ASNs allocated by the RIRs: 43101
Number of 32-bit ASNs visible in the Routing Table: 35439
Prefixes from 32-bit ASNs in the Routing Table: 178053
Number of bogon 32-bit ASNs visible in the Routing Table: 29
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 525
Number of addresses announced to Internet: 3049330944
Equivalent to 181 /8s, 193 /16s and 25 /24s
Percentage of available address space announced: 82.4
Percentage of allocated address space announced: 82.4
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: 310583
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 249008
Total APNIC prefixes after maximum aggregation: 71753
APNIC Deaggregation factor: 3.47
Prefixes being announced from the APNIC address blocks: 242249
Unique aggregates announced from the APNIC address blocks: 99279
APNIC Region origin ASes present in the Internet Routing Table: 13790
APNIC Prefixes per ASN: 17.57
APNIC Region origin ASes announcing only one prefix: 4151
APNIC Region transit ASes present in the Internet Routing Table: 1859
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 32
Number of APNIC region 32-bit ASNs visible in the Routing Table: 9120
Number of APNIC addresses announced to Internet: 771834752
Equivalent to 46 /8s, 1 /16s and 67 /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: 273658
Total ARIN prefixes after maximum aggregation: 124133
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 278450
Unique aggregates announced from the ARIN address blocks: 132343
ARIN Region origin ASes present in the Internet Routing Table: 19075
ARIN Prefixes per ASN: 14.60
ARIN Region origin ASes announcing only one prefix: 6959
ARIN Region transit ASes present in the Internet Routing Table: 1954
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4829
Number of ARIN addresses announced to Internet: 1276687360
Equivalent to 76 /8s, 24 /16s and 180 /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: 262273
Total RIPE prefixes after maximum aggregation: 124809
RIPE Deaggregation factor: 2.10
Prefixes being announced from the RIPE address blocks: 256705
Unique aggregates announced from the RIPE address blocks: 160488
RIPE Region origin ASes present in the Internet Routing Table: 28493
RIPE Prefixes per ASN: 9.01
RIPE Region origin ASes announcing only one prefix: 12114
RIPE Region transit ASes present in the Internet Routing Table: 3936
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 37
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11457
Number of RIPE addresses announced to Internet: 714615424
Equivalent to 42 /8s, 152 /16s and 42 /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: 119594
Total LACNIC prefixes after maximum aggregation: 28735
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 118364
Unique aggregates announced from the LACNIC address blocks: 49362
LACNIC Region origin ASes present in the Internet Routing Table: 11047
LACNIC Prefixes per ASN: 10.71
LACNIC Region origin ASes announcing only one prefix: 2668
LACNIC Region transit ASes present in the Internet Routing Table: 2340
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: 8886
Number of LACNIC addresses announced to Internet: 178433792
Equivalent to 10 /8s, 162 /16s and 175 /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: 30073
Total AfriNIC prefixes after maximum aggregation: 6016
AfriNIC Deaggregation factor: 5.00
Prefixes being announced from the AfriNIC address blocks: 39349
Unique aggregates announced from the AfriNIC address blocks: 12770
AfriNIC Region origin ASes present in the Internet Routing Table: 1807
AfriNIC Prefixes per ASN: 21.78
AfriNIC Region origin ASes announcing only one prefix: 631
AfriNIC Region transit ASes present in the Internet Routing Table: 352
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1147
Number of AfriNIC addresses announced to Internet: 107395840
Equivalent to 6 /8s, 102 /16s and 187 /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 9751 8730 44 CHINAMOBILE-CN China Mobile Communicati
7545 5686 785 697 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4918 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4333 347 25 FPT-AS-AP FPT Telecom Company, VN
7713 3600 1047 70 TELKOMNET-AS-AP PT Telekomunikasi Indon
9498 3381 494 247 BBIL-AP BHARTI Airtel Ltd., IN
45899 3264 1872 99 VNPT-AS-VN VNPT Corp, VN
7552 2987 1330 20 VIETEL-AS-AP Viettel Group, VN
24560 2616 853 365 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
4766 2484 11259 585 KIXS-AS-KR Korea Telecom, KR
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 9350 11143 3300 AMAZON-02, US
11492 4559 302 677 CABLEONE, US
7155 4175 288 98 VIASAT-SP-BACKBONE, US
6327 3559 1320 68 SHAW, CA
22773 3510 3055 301 ASN-CXA-ALL-CCI-22773-RDC, US
749 3159 54932 2411 DNIC-AS-00749, US
16625 3144 1393 2310 AKAMAI-AS, US
367 3010 3861 1416 DNIC-ASBLK-00306-00371, US
396982 2722 3631 374 GOOGLE-CLOUD-PLATFORM, US
7018 2584 23619 1601 ATT-INTERNET4, 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 7471 1714 146 UNI2-AS, ES
39891 4570 271 54 ALJAWWALSTC-AS, SA
20940 4010 3397 142 AKAMAI-ASN1, NL
9009 3458 299 1612 M247, RO
8551 3433 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2946 2296 918 ROSTELECOM-AS, RU
34984 2321 361 589 TELLCOM-AS, TR
13188 1607 100 26 TRIOLAN, UA
58224 1602 895 608 TCI, IR
8452 1527 1852 14 TE-AS TE-AS, EG
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 12075 3376 603 UNINET, MX
10620 3528 499 871 Telmex Colombia S.A., CO
13999 2469 337 645 Mega Cable, S.A. de C.V., MX
11830 2009 369 64 Instituto Costarricense de Electricidad
28573 1329 2321 248 Claro NXT Telecomunicacoes Ltda, BR
3816 1302 781 197 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6503 1250 342 505 Axtel, S.A.B. de C.V., MX
6147 1082 369 22 Telefonica del Peru S.A.A., PE
11664 1080 173 437 Techtel LMDS Comunicaciones Interactiva
26615 1040 2502 52 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 1600 389 16 LINKdotNET-AS, EG
24835 1548 545 28 RAYA-AS, EG
36992 1358 1518 280 ETISALAT-MISR, EG
36903 1248 553 98 MT-MPLS, MA
29571 1045 67 53 ORANGE-COTE-IVOIRE, CI
36935 935 521 43 Vodafone-, EG
6713 550 1861 34 IAM-AS, MA
15399 522 54 47 WANANCHI-, KE
37342 492 32 1 MOVITEL, MZ
24757 482 73 5 EthioNet-AS, ET
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 12075 3376 603 UNINET, MX
9808 9751 8730 44 CHINAMOBILE-CN China Mobile Communicati
16509 9350 11143 3300 AMAZON-02, US
12479 7471 1714 146 UNI2-AS, ES
7545 5686 785 697 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4918 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4570 271 54 ALJAWWALSTC-AS, SA
11492 4559 302 677 CABLEONE, US
18403 4333 347 25 FPT-AS-AP FPT Telecom Company, VN
7155 4175 288 98 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 9751 9707 CHINAMOBILE-CN China Mobile Communications Grou
12479 7471 7325 UNI2-AS, ES
16509 9350 6050 AMAZON-02, US
7545 5686 4989 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4918 4843 ERX-CERNET-BKB China Education and Research Net
39891 4570 4516 ALJAWWALSTC-AS, SA
18403 4333 4308 FPT-AS-AP FPT Telecom Company, VN
7155 4175 4077 VIASAT-SP-BACKBONE, US
11492 4559 3882 CABLEONE, US
20940 4010 3868 AKAMAI-ASN1, NL
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
65536 DOCUMENT 5.102.30.0/24 65512 -Private Use AS-, ZZ
33492 UNALLOCATED 8.6.184.0/23 33650 COMCAST-33650, US
33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US
12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M
40493 UNALLOCATED 8.17.26.0/24 3356 LEVEL3, US
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
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
23.140.216.0/24 Origin: 27176 DATAWAGON, US
23.140.216.0/24 Transit: 20278 NEXEON, US
23.141.0.0/24 Origin: 395350 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.176.160.0/24 Origin: 397327 RESERVED, ZZ
23.176.160.0/24 Transit: 19108 SUDDENLINK-COMMUNICATIONS, US
23.189.192.0/24 Origin: 27593 RESERVED, ZZ
23.189.192.0/24 Transit: 174 COGENT-174, US
36.255.139.0/24 Origin: 56050 NEW-SHINE-INTERNET-TH 134 Yenchit Road,
36.255.139.0/24 Transit: 58913 HCL-TH 4819 Supapong 3 Alley, Srinakarin
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 /9:14 /10:38 /11:99 /12:298
/13:582 /14:1194 /15:2060 /16:13465 /17:8298 /18:13834
/19:25150 /20:44384 /21:51581 /22:110716 /23:99682 /24:563499
/25:732 /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 6565 7471 UNI2-AS, ES
8151 6097 12075 UNINET, MX
11492 3472 4559 CABLEONE, US
6327 3367 3559 SHAW, CA
39891 3324 4570 ALJAWWALSTC-AS, SA
7155 3122 4175 VIASAT-SP-BACKBONE, US
8551 2910 3433 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2563 3510 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2136 2481 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2121 3528 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2261 2:1430 3:276 4:5 5:4390 6:162
7:6 8:1533 9:1 11:172 12:1494 13:375
14:2322 15:303 16:206 17:364 18:684 20:319
21:4 22:188 23:6511 24:2571 25:2 27:2520
29:19 31:2538 32:58 34:32 35:118 36:2031
37:4453 38:5678 39:878 40:149 41:3984 42:2076
43:2323 44:330 45:16693 46:4397 47:373 49:1861
50:1885 51:573 52:1593 54:393 55:877 56:5
57:127 58:1899 59:1177 60:1007 61:2561 62:2731
63:1903 64:5478 65:2351 66:5036 67:3060 68:1354
69:4124 70:1190 71:605 72:2924 74:2637 75:1560
76:628 77:2329 78:1826 79:3019 80:2110 81:1848
82:1518 83:1311 84:1617 85:2980 86:781 87:1953
88:1239 89:3950 90:631 91:7879 92:2145 93:2647
94:3577 95:3994 96:1298 97:316 98:1084 99:738
100:96 101:1174 102:2953 103:32456 104:4793 105:592
106:982 107:2770 108:1140 109:4208 110:2134 111:3172
112:2082 113:1754 114:1726 115:1982 116:1935 117:2484
118:2741 119:1951 120:1806 121:1260 122:2632 123:2231
124:1629 125:2781 128:1485 129:916 130:1053 131:1978
132:828 133:407 134:1705 135:299 136:922 137:1037
138:2697 139:1581 140:1336 141:1331 142:1533 143:1521
144:1006 145:343 146:1986 147:1635 148:2458 149:2306
150:1009 151:1255 152:1839 153:525 154:5278 155:1382
156:2108 157:1356 158:1056 159:2209 160:2608 161:1604
162:3568 163:1631 164:1650 165:1864 166:1107 167:1764
168:3845 169:801 170:4678 171:965 172:3765 173:2999
174:958 175:1203 176:3628 177:4537 178:3525 179:2167
180:2272 181:3592 182:3408 183:2021 184:2274 185:20510
186:4770 187:4281 188:4075 189:3956 190:9306 191:1456
192:11021 193:8977 194:7317 195:5209 196:3131 197:2471
198:6039 199:6535 200:8084 201:6234 202:10598 203:10050
204:4575 205:3703 206:4434 207:3507 208:4112 209:4921
210:4522 211:2545 212:4245 213:3386 214:1116 215:70
216:6727 217:2750 218:1325 219:586 220:2030 221:1003
222:870 223:2216
End of report
More information about the sanog
mailing list