[afnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Aug 18 18:02:11 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 19 Aug, 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: 927242
Prefixes after maximum aggregation (per Origin AS): 352002
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 452701
Total ASes present in the Internet Routing Table: 74748
Prefixes per ASN: 12.40
Origin-only ASes present in the Internet Routing Table: 64164
Origin ASes announcing only one prefix: 26373
Transit ASes present in the Internet Routing Table: 10584
Transit-only ASes present in the Internet Routing Table: 454
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 132
Max AS path prepend of ASN ( 37447) 129
Prefixes from unregistered ASNs in the Routing Table: 1002
Number of instances of unregistered ASNs: 1004
Number of 32-bit ASNs allocated by the RIRs: 42455
Number of 32-bit ASNs visible in the Routing Table: 34992
Prefixes from 32-bit ASNs in the Routing Table: 174304
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: 566
Number of addresses announced to Internet: 3052365312
Equivalent to 181 /8s, 239 /16s and 102 /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: 308880
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 246132
Total APNIC prefixes after maximum aggregation: 70385
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 239730
Unique aggregates announced from the APNIC address blocks: 98919
APNIC Region origin ASes present in the Internet Routing Table: 13600
APNIC Prefixes per ASN: 17.63
APNIC Region origin ASes announcing only one prefix: 4035
APNIC Region transit ASes present in the Internet Routing Table: 1806
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 27
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8923
Number of APNIC addresses announced to Internet: 773395072
Equivalent to 46 /8s, 25 /16s and 18 /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: 271743
Total ARIN prefixes after maximum aggregation: 123850
ARIN Deaggregation factor: 2.19
Prefixes being announced from the ARIN address blocks: 273832
Unique aggregates announced from the ARIN address blocks: 130932
ARIN Region origin ASes present in the Internet Routing Table: 19099
ARIN Prefixes per ASN: 14.34
ARIN Region origin ASes announcing only one prefix: 6970
ARIN Region transit ASes present in the Internet Routing Table: 1960
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: 4818
Number of ARIN addresses announced to Internet: 1276006400
Equivalent to 76 /8s, 14 /16s and 80 /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: 260223
Total RIPE prefixes after maximum aggregation: 122560
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 257147
Unique aggregates announced from the RIPE address blocks: 159996
RIPE Region origin ASes present in the Internet Routing Table: 28405
RIPE Prefixes per ASN: 9.05
RIPE Region origin ASes announcing only one prefix: 12054
RIPE Region transit ASes present in the Internet Routing Table: 3939
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 35
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11302
Number of RIPE addresses announced to Internet: 716347264
Equivalent to 42 /8s, 178 /16s and 151 /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: 118279
Total LACNIC prefixes after maximum aggregation: 28588
LACNIC Deaggregation factor: 4.14
Prefixes being announced from the LACNIC address blocks: 117328
Unique aggregates announced from the LACNIC address blocks: 49655
LACNIC Region origin ASes present in the Internet Routing Table: 11017
LACNIC Prefixes per ASN: 10.65
LACNIC Region origin ASes announcing only one prefix: 2697
LACNIC Region transit ASes present in the Internet Routing Table: 2325
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 70
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8830
Number of LACNIC addresses announced to Internet: 178547712
Equivalent to 10 /8s, 164 /16s and 108 /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: 29863
Total AfriNIC prefixes after maximum aggregation: 5919
AfriNIC Deaggregation factor: 5.05
Prefixes being announced from the AfriNIC address blocks: 38639
Unique aggregates announced from the AfriNIC address blocks: 12725
AfriNIC Region origin ASes present in the Internet Routing Table: 1778
AfriNIC Prefixes per ASN: 21.73
AfriNIC Region origin ASes announcing only one prefix: 617
AfriNIC Region transit ASes present in the Internet Routing Table: 332
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 132
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1119
Number of AfriNIC addresses announced to Internet: 107667968
Equivalent to 6 /8s, 106 /16s and 226 /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 9524 8705 38 CHINAMOBILE-CN China Mobile Communicati
7545 5701 784 685 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4867 4193 76 ERX-CERNET-BKB China Education and Rese
18403 4313 347 25 FPT-AS-AP FPT Telecom Company, VN
7713 3595 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3352 1840 97 VNPT-AS-VN VNPT Corp, VN
9498 3083 498 248 BBIL-AP BHARTI Airtel Ltd., IN
7552 2932 1331 21 VIETEL-AS-AP Viettel Group, VN
4766 2558 11271 592 KIXS-AS-KR Korea Telecom, KR
24560 2482 844 409 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
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 8817 10963 3227 AMAZON-02, US
11492 4524 300 622 CABLEONE, US
7155 4176 288 101 VIASAT-SP-BACKBONE, US
22773 3552 3054 291 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3527 1319 66 SHAW, CA
749 3150 54961 2402 DNIC-AS-00749, US
16625 3090 1508 2328 AKAMAI-AS, US
367 2992 3829 1418 DNIC-ASBLK-00306-00371, US
396982 2685 3596 387 GOOGLE-CLOUD-PLATFORM, US
30036 2503 359 387 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 7342 1713 145 UNI2-AS, ES
39891 4897 290 61 ALJAWWALSTC-AS, SA
20940 4092 3398 155 AKAMAI-ASN1, NL
8551 3460 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2983 2294 918 ROSTELECOM-AS, RU
9009 2675 247 1386 M247, RO
34984 2321 362 599 TELLCOM-AS, TR
58224 1817 943 536 TCI, IR
13188 1606 100 27 TRIOLAN, UA
61317 1526 102 1189 ASDETUK www.heficed.com, US
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 11550 3357 601 UNINET, MX
10620 3530 506 845 Telmex Colombia S.A., CO
13999 2442 364 643 Mega Cable, S.A. de C.V., MX
11830 1997 369 64 Instituto Costarricense de Electricidad
28573 1315 2324 233 Claro NXT Telecomunicacoes Ltda, BR
3816 1288 757 193 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6503 1272 344 511 Axtel, S.A.B. de C.V., MX
6147 1114 370 22 Telefonica del Peru S.A.A., PE
11664 1113 181 435 Techtel LMDS Comunicaciones Interactiva
26615 1035 2501 49 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 1594 393 19 LINKdotNET-AS, EG
24835 1517 533 27 RAYA-AS, EG
36992 1356 1518 282 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1051 67 45 ORANGE-COTE-IVOIRE, CI
36935 922 521 43 Vodafone-, EG
6713 550 1861 34 IAM-AS, MA
24757 477 73 5 EthioNet-AS, ET
37342 472 32 1 MOVITEL, MZ
15399 451 55 50 WANANCHI-, KE
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 11550 3357 601 UNINET, MX
9808 9524 8705 38 CHINAMOBILE-CN China Mobile Communicati
16509 8817 10963 3227 AMAZON-02, US
12479 7342 1713 145 UNI2-AS, ES
7545 5701 784 685 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4897 290 61 ALJAWWALSTC-AS, SA
4538 4867 4193 76 ERX-CERNET-BKB China Education and Rese
11492 4524 300 622 CABLEONE, US
18403 4313 347 25 FPT-AS-AP FPT Telecom Company, VN
7155 4176 288 101 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 9524 9486 CHINAMOBILE-CN China Mobile Communications Grou
12479 7342 7197 UNI2-AS, ES
16509 8817 5590 AMAZON-02, US
7545 5701 5016 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4897 4836 ALJAWWALSTC-AS, SA
4538 4867 4791 ERX-CERNET-BKB China Education and Research Net
18403 4313 4288 FPT-AS-AP FPT Telecom Company, VN
7155 4176 4075 VIASAT-SP-BACKBONE, US
20940 4092 3937 AKAMAI-ASN1, NL
11492 4524 3902 CABLEONE, US
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
33492 UNALLOCATED 8.6.184.0/23 33650 COMCAST-33650, US
33123 UNALLOCATED 8.10.69.0/24 11168 SCC, 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
54338 UNALLOCATED 8.33.241.0/24 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
23.140.216.0/24 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
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
41.57.124.0/22 Origin: 37442 RESERVED, ZZ
41.57.124.0/22 Transit: 37204 TELONE, ZW
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 /10:39 /11:102 /12:296
/13:576 /14:1195 /15:2069 /16:13508 /17:8290 /18:13869
/19:25176 /20:44517 /21:51321 /22:110018 /23:98949 /24:556548
/25:739 /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 6428 7342 UNI2-AS, ES
8151 5601 11550 UNINET, MX
39891 3632 4897 ALJAWWALSTC-AS, SA
11492 3434 4524 CABLEONE, US
6327 3337 3527 SHAW, CA
7155 3121 4176 VIASAT-SP-BACKBONE, US
8551 2928 3460 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2600 3552 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2160 2503 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2094 3530 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2232 2:1376 3:226 4:5 5:4547 6:138
7:6 8:1550 9:1 11:172 12:1509 13:379
14:2316 15:302 16:198 17:373 18:598 20:280
21:4 22:188 23:6405 24:2490 25:6 27:2478
29:19 31:2524 32:81 34:25 35:117 36:1996
37:4611 38:5135 39:856 40:147 41:3966 42:2090
43:2322 44:317 45:16575 46:4339 47:384 49:1801
50:1861 51:593 52:1597 54:388 55:968 56:8
57:121 58:1890 59:1169 60:996 61:2430 62:2704
63:1918 64:5564 65:2334 66:4947 67:3009 68:1325
69:4088 70:1197 71:656 72:2951 74:2622 75:1569
76:619 77:2447 78:1837 79:2984 80:2115 81:1803
82:1501 83:1282 84:1537 85:2984 86:761 87:1980
88:1167 89:3853 90:617 91:7818 92:2068 93:2606
94:3511 95:4007 96:1280 97:318 98:1082 99:734
100:90 101:1071 102:2884 103:31915 104:4554 105:568
106:891 107:2561 108:1131 109:4255 110:2120 111:3190
112:2052 113:1810 114:1658 115:1975 116:1906 117:2467
118:2682 119:1981 120:1810 121:1148 122:2588 123:2188
124:1619 125:2505 128:1471 129:1050 130:1029 131:1957
132:818 133:423 134:1788 135:307 136:907 137:971
138:2635 139:1580 140:1254 141:1293 142:1479 143:1495
144:1000 145:340 146:1967 147:1612 148:2424 149:2133
150:869 151:1200 152:1849 153:516 154:4770 155:1385
156:1934 157:1321 158:1084 159:2233 160:2604 161:1556
162:3500 163:1594 164:1708 165:1823 166:1013 167:1729
168:3851 169:909 170:4602 171:889 172:3660 173:2976
174:991 175:1196 176:3789 177:4493 178:3549 179:2137
180:2426 181:3477 182:3453 183:1998 184:2293 185:20504
186:4745 187:4073 188:4159 189:3723 190:9254 191:1399
192:10946 193:8947 194:7297 195:5189 196:3126 197:2454
198:6015 199:6082 200:7917 201:6011 202:10565 203:10029
204:4545 205:3682 206:4314 207:3470 208:4129 209:4913
210:4462 211:2474 212:4244 213:3579 214:1093 215:60
216:6679 217:2761 218:1286 219:582 220:2030 221:976
222:836 223:2169
End of report
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