[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Sep 29 18:02:09 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
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 30 Sep, 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: 930281
Prefixes after maximum aggregation (per Origin AS): 353509
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 453312
Total ASes present in the Internet Routing Table: 74874
Prefixes per ASN: 12.42
Origin-only ASes present in the Internet Routing Table: 64269
Origin ASes announcing only one prefix: 26434
Transit ASes present in the Internet Routing Table: 10605
Transit-only ASes present in the Internet Routing Table: 460
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: 1003
Number of instances of unregistered ASNs: 1005
Number of 32-bit ASNs allocated by the RIRs: 42726
Number of 32-bit ASNs visible in the Routing Table: 35176
Prefixes from 32-bit ASNs in the Routing Table: 175775
Number of bogon 32-bit ASNs visible in the Routing Table: 54
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 527
Number of addresses announced to Internet: 3053878912
Equivalent to 182 /8s, 6 /16s and 126 /24s
Percentage of available address space announced: 82.5
Percentage of allocated address space announced: 82.5
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: 309201
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 247043
Total APNIC prefixes after maximum aggregation: 70962
APNIC Deaggregation factor: 3.48
Prefixes being announced from the APNIC address blocks: 240653
Unique aggregates announced from the APNIC address blocks: 98905
APNIC Region origin ASes present in the Internet Routing Table: 13679
APNIC Prefixes per ASN: 17.59
APNIC Region origin ASes announcing only one prefix: 4094
APNIC Region transit ASes present in the Internet Routing Table: 1821
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: 9004
Number of APNIC addresses announced to Internet: 772959104
Equivalent to 46 /8s, 18 /16s and 107 /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: 272579
Total ARIN prefixes after maximum aggregation: 123726
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 276203
Unique aggregates announced from the ARIN address blocks: 131912
ARIN Region origin ASes present in the Internet Routing Table: 19097
ARIN Prefixes per ASN: 14.46
ARIN Region origin ASes announcing only one prefix: 6956
ARIN Region transit ASes present in the Internet Routing Table: 1960
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4829
Number of ARIN addresses announced to Internet: 1277916160
Equivalent to 76 /8s, 43 /16s and 116 /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: 261556
Total RIPE prefixes after maximum aggregation: 123664
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 256783
Unique aggregates announced from the RIPE address blocks: 160050
RIPE Region origin ASes present in the Internet Routing Table: 28418
RIPE Prefixes per ASN: 9.04
RIPE Region origin ASes announcing only one prefix: 12056
RIPE Region transit ASes present in the Internet Routing Table: 3946
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 34
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11354
Number of RIPE addresses announced to Internet: 716413824
Equivalent to 42 /8s, 179 /16s and 155 /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: 118194
Total LACNIC prefixes after maximum aggregation: 28513
LACNIC Deaggregation factor: 4.15
Prefixes being announced from the LACNIC address blocks: 117113
Unique aggregates announced from the LACNIC address blocks: 49363
LACNIC Region origin ASes present in the Internet Routing Table: 11037
LACNIC Prefixes per ASN: 10.61
LACNIC Region origin ASes announcing only one prefix: 2705
LACNIC Region transit ASes present in the Internet Routing Table: 2334
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: 8855
Number of LACNIC addresses announced to Internet: 178491776
Equivalent to 10 /8s, 163 /16s and 145 /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: 29906
Total AfriNIC prefixes after maximum aggregation: 5948
AfriNIC Deaggregation factor: 5.03
Prefixes being announced from the AfriNIC address blocks: 39002
Unique aggregates announced from the AfriNIC address blocks: 12642
AfriNIC Region origin ASes present in the Internet Routing Table: 1790
AfriNIC Prefixes per ASN: 21.79
AfriNIC Region origin ASes announcing only one prefix: 623
AfriNIC Region transit ASes present in the Internet Routing Table: 335
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: 1134
Number of AfriNIC addresses announced to Internet: 107671808
Equivalent to 6 /8s, 106 /16s and 241 /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 9495 8730 44 CHINAMOBILE-CN China Mobile Communicati
7545 5735 785 698 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4938 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4231 347 25 FPT-AS-AP FPT Telecom Company, VN
7713 3592 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3331 1840 96 VNPT-AS-VN VNPT Corp, VN
9498 3188 498 251 BBIL-AP BHARTI Airtel Ltd., IN
7552 2940 1330 20 VIETEL-AS-AP Viettel Group, VN
4766 2540 11270 601 KIXS-AS-KR Korea Telecom, KR
24560 2517 848 383 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 9098 10992 3232 AMAZON-02, US
11492 4535 301 668 CABLEONE, US
7155 4177 288 100 VIASAT-SP-BACKBONE, US
6327 3546 1319 66 SHAW, CA
22773 3529 3055 302 ASN-CXA-ALL-CCI-22773-RDC, US
749 3151 54959 2403 DNIC-AS-00749, US
367 3002 3822 1418 DNIC-ASBLK-00306-00371, US
16625 2987 1409 2288 AKAMAI-AS, US
396982 2698 3597 395 GOOGLE-CLOUD-PLATFORM, US
30036 2498 359 376 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 7389 1713 145 UNI2-AS, ES
39891 4897 290 61 ALJAWWALSTC-AS, SA
20940 4073 3398 153 AKAMAI-ASN1, NL
8551 3446 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2980 2296 915 ROSTELECOM-AS, RU
9009 2897 264 1483 M247, RO
34984 2334 361 596 TELLCOM-AS, TR
58224 1723 923 527 TCI, IR
13188 1606 100 27 TRIOLAN, UA
8452 1488 1852 16 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 11801 3382 595 UNINET, MX
10620 3542 506 852 Telmex Colombia S.A., CO
13999 2407 331 621 Mega Cable, S.A. de C.V., MX
11830 1820 369 64 Instituto Costarricense de Electricidad
28573 1327 2324 233 Claro NXT Telecomunicacoes Ltda, BR
6503 1302 344 510 Axtel, S.A.B. de C.V., MX
3816 1296 766 190 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1110 369 22 Telefonica del Peru S.A.A., PE
11664 1106 179 428 Techtel LMDS Comunicaciones Interactiva
26615 1034 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 1605 393 19 LINKdotNET-AS, EG
24835 1549 549 28 RAYA-AS, EG
36992 1360 1518 280 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1046 67 45 ORANGE-COTE-IVOIRE, CI
36935 938 521 44 Vodafone-, EG
6713 549 1861 34 IAM-AS, MA
15399 533 55 50 WANANCHI-, KE
37342 489 32 1 MOVITEL, MZ
24757 462 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 11801 3382 595 UNINET, MX
9808 9495 8730 44 CHINAMOBILE-CN China Mobile Communicati
16509 9098 10992 3232 AMAZON-02, US
12479 7389 1713 145 UNI2-AS, ES
7545 5735 785 698 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4938 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4897 290 61 ALJAWWALSTC-AS, SA
11492 4535 301 668 CABLEONE, US
18403 4231 347 25 FPT-AS-AP FPT Telecom Company, VN
7155 4177 288 100 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 9495 9451 CHINAMOBILE-CN China Mobile Communications Grou
12479 7389 7244 UNI2-AS, ES
16509 9098 5866 AMAZON-02, US
7545 5735 5037 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4938 4863 ERX-CERNET-BKB China Education and Research Net
39891 4897 4836 ALJAWWALSTC-AS, SA
18403 4231 4206 FPT-AS-AP FPT Telecom Company, VN
7155 4177 4077 VIASAT-SP-BACKBONE, US
20940 4073 3920 AKAMAI-ASN1, NL
11492 4535 3867 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
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 /11:101 /12:299
/13:581 /14:1196 /15:2064 /16:13501 /17:8313 /18:13886
/19:25168 /20:44315 /21:51237 /22:110289 /23:99053 /24:559476
/25:734 /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 6476 7389 UNI2-AS, ES
8151 5830 11801 UNINET, MX
39891 3632 4897 ALJAWWALSTC-AS, SA
11492 3447 4535 CABLEONE, US
6327 3356 3546 SHAW, CA
7155 3122 4177 VIASAT-SP-BACKBONE, US
8551 2923 3446 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2578 3529 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2155 2498 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2107 3542 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2237 2:1408 3:265 4:5 5:4436 6:137
7:6 8:1538 9:1 11:172 12:1514 13:369
14:2328 15:304 16:200 17:369 18:659 20:287
21:4 22:188 23:6432 24:2511 25:2 27:2531
29:19 31:2535 32:78 34:25 35:117 36:2007
37:4520 38:5367 39:864 40:143 41:4016 42:2067
43:2295 44:321 45:16644 46:4296 47:369 49:1835
50:1884 51:590 52:1592 54:393 55:960 56:5
57:122 58:1866 59:1180 60:1004 61:2517 62:2690
63:1914 64:5647 65:2361 66:4990 67:3038 68:1340
69:4135 70:1194 71:668 72:2944 74:2626 75:1560
76:626 77:2302 78:1826 79:2985 80:2098 81:1832
82:1503 83:1302 84:1560 85:3075 86:770 87:2004
88:1201 89:3912 90:620 91:7813 92:2062 93:2617
94:3515 95:4020 96:1300 97:315 98:1082 99:730
100:90 101:1047 102:2860 103:32150 104:4739 105:576
106:915 107:2694 108:1132 109:4245 110:2134 111:3200
112:2067 113:1817 114:1693 115:1987 116:1901 117:2460
118:2685 119:1969 120:1803 121:1182 122:2610 123:2215
124:1614 125:2576 128:1450 129:922 130:1044 131:1977
132:820 133:408 134:1784 135:306 136:971 137:970
138:2620 139:1596 140:1286 141:1325 142:1513 143:1549
144:1009 145:353 146:1951 147:1608 148:2480 149:2281
150:877 151:1229 152:1873 153:520 154:5067 155:1389
156:1987 157:1336 158:1055 159:2247 160:2631 161:1594
162:3544 163:1608 164:1701 165:1845 166:1070 167:1734
168:3761 169:885 170:4634 171:914 172:3774 173:2966
174:983 175:1193 176:3788 177:4467 178:3537 179:2163
180:2459 181:3528 182:3409 183:1980 184:2275 185:20579
186:4678 187:4181 188:4165 189:3859 190:9281 191:1371
192:10986 193:8964 194:7308 195:5224 196:3096 197:2477
198:6024 199:6144 200:7861 201:5890 202:10557 203:10031
204:4557 205:3701 206:4381 207:3504 208:4153 209:4913
210:4498 211:2540 212:4258 213:3391 214:1114 215:70
216:6707 217:2781 218:1302 219:577 220:2032 221:982
222:842 223:2179
End of report
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