[menog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Oct 27 18:02:17 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 28 Oct, 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: 933486
Prefixes after maximum aggregation (per Origin AS): 355172
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 454360
Total ASes present in the Internet Routing Table: 74926
Prefixes per ASN: 12.46
Origin-only ASes present in the Internet Routing Table: 64271
Origin ASes announcing only one prefix: 26491
Transit ASes present in the Internet Routing Table: 10655
Transit-only ASes present in the Internet Routing Table: 466
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 110
Max AS path prepend of ASN ( 37447) 103
Prefixes from unregistered ASNs in the Routing Table: 1035
Number of instances of unregistered ASNs: 1038
Number of 32-bit ASNs allocated by the RIRs: 42931
Number of 32-bit ASNs visible in the Routing Table: 35242
Prefixes from 32-bit ASNs in the Routing Table: 176650
Number of bogon 32-bit ASNs visible in the Routing Table: 23
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 522
Number of addresses announced to Internet: 3052253184
Equivalent to 181 /8s, 237 /16s and 176 /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: 310357
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 247685
Total APNIC prefixes after maximum aggregation: 71250
APNIC Deaggregation factor: 3.48
Prefixes being announced from the APNIC address blocks: 241058
Unique aggregates announced from the APNIC address blocks: 99089
APNIC Region origin ASes present in the Internet Routing Table: 13657
APNIC Prefixes per ASN: 17.65
APNIC Region origin ASes announcing only one prefix: 4127
APNIC Region transit ASes present in the Internet Routing Table: 1823
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: 8996
Number of APNIC addresses announced to Internet: 772061312
Equivalent to 46 /8s, 4 /16s and 184 /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: 273852
Total ARIN prefixes after maximum aggregation: 124239
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 278042
Unique aggregates announced from the ARIN address blocks: 132470
ARIN Region origin ASes present in the Internet Routing Table: 19094
ARIN Prefixes per ASN: 14.56
ARIN Region origin ASes announcing only one prefix: 6963
ARIN Region transit ASes present in the Internet Routing Table: 1971
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: 4827
Number of ARIN addresses announced to Internet: 1277346304
Equivalent to 76 /8s, 34 /16s and 194 /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: 261730
Total RIPE prefixes after maximum aggregation: 124378
RIPE Deaggregation factor: 2.10
Prefixes being announced from the RIPE address blocks: 256575
Unique aggregates announced from the RIPE address blocks: 160410
RIPE Region origin ASes present in the Internet Routing Table: 28464
RIPE Prefixes per ASN: 9.01
RIPE Region origin ASes announcing only one prefix: 12095
RIPE Region transit ASes present in the Internet Routing Table: 3943
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11402
Number of RIPE addresses announced to Internet: 716620416
Equivalent to 42 /8s, 182 /16s and 194 /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: 119022
Total LACNIC prefixes after maximum aggregation: 28594
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 117934
Unique aggregates announced from the LACNIC address blocks: 49302
LACNIC Region origin ASes present in the Internet Routing Table: 11044
LACNIC Prefixes per ASN: 10.68
LACNIC Region origin ASes announcing only one prefix: 2681
LACNIC Region transit ASes present in the Internet Routing Table: 2358
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: 8873
Number of LACNIC addresses announced to Internet: 178300416
Equivalent to 10 /8s, 160 /16s and 166 /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: 30162
Total AfriNIC prefixes after maximum aggregation: 5994
AfriNIC Deaggregation factor: 5.03
Prefixes being announced from the AfriNIC address blocks: 39355
Unique aggregates announced from the AfriNIC address blocks: 12657
AfriNIC Region origin ASes present in the Internet Routing Table: 1804
AfriNIC Prefixes per ASN: 21.82
AfriNIC Region origin ASes announcing only one prefix: 625
AfriNIC Region transit ASes present in the Internet Routing Table: 348
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 110
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1144
Number of AfriNIC addresses announced to Internet: 107500544
Equivalent to 6 /8s, 104 /16s and 84 /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 9487 8730 43 CHINAMOBILE-CN China Mobile Communicati
7545 5718 785 696 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4935 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4211 347 25 FPT-AS-AP FPT Telecom Company, VN
7713 3605 1047 70 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3325 1840 100 VNPT-AS-VN VNPT Corp, VN
9498 3230 492 239 BBIL-AP BHARTI Airtel Ltd., IN
7552 2959 1330 20 VIETEL-AS-AP Viettel Group, VN
24560 2558 850 376 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd
4766 2538 11270 601 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 9188 11027 3293 AMAZON-02, US
11492 4538 301 673 CABLEONE, US
7155 4173 288 100 VIASAT-SP-BACKBONE, US
6327 3555 1320 67 SHAW, CA
22773 3524 3056 304 ASN-CXA-ALL-CCI-22773-RDC, US
749 3161 54958 2413 DNIC-AS-00749, US
367 3079 3851 1436 DNIC-ASBLK-00306-00371, US
16625 3007 1383 2291 AKAMAI-AS, US
396982 2705 3598 397 GOOGLE-CLOUD-PLATFORM, US
7018 2542 23613 1590 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 7418 1713 145 UNI2-AS, ES
39891 4570 271 54 ALJAWWALSTC-AS, SA
20940 4089 3397 148 AKAMAI-ASN1, NL
8551 3444 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
9009 3226 285 1601 M247, RO
12389 2968 2295 914 ROSTELECOM-AS, RU
34984 2324 361 592 TELLCOM-AS, TR
58224 1684 916 545 TCI, IR
13188 1606 100 27 TRIOLAN, UA
8452 1522 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 11915 3370 611 UNINET, MX
10620 3540 504 856 Telmex Colombia S.A., CO
13999 2433 337 635 Mega Cable, S.A. de C.V., MX
11830 2005 369 64 Instituto Costarricense de Electricidad
28573 1331 2322 236 Claro NXT Telecomunicacoes Ltda, BR
3816 1299 770 197 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6503 1250 342 505 Axtel, S.A.B. de C.V., MX
6147 1109 369 22 Telefonica del Peru S.A.A., PE
11664 1058 168 430 Techtel LMDS Comunicaciones Interactiva
26615 1039 2501 51 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 1604 393 19 LINKdotNET-AS, EG
24835 1549 549 28 RAYA-AS, EG
36992 1358 1518 280 ETISALAT-MISR, EG
36903 1248 553 98 MT-MPLS, MA
29571 1047 67 46 ORANGE-COTE-IVOIRE, CI
36935 938 521 44 Vodafone-, EG
6713 551 1861 34 IAM-AS, MA
15399 537 55 51 WANANCHI-, KE
37342 495 32 1 MOVITEL, MZ
24757 480 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 11915 3370 611 UNINET, MX
9808 9487 8730 43 CHINAMOBILE-CN China Mobile Communicati
16509 9188 11027 3293 AMAZON-02, US
12479 7418 1713 145 UNI2-AS, ES
7545 5718 785 696 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4935 4192 75 ERX-CERNET-BKB China Education and Rese
39891 4570 271 54 ALJAWWALSTC-AS, SA
11492 4538 301 673 CABLEONE, US
18403 4211 347 25 FPT-AS-AP FPT Telecom Company, VN
7155 4173 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 9487 9444 CHINAMOBILE-CN China Mobile Communications Grou
12479 7418 7273 UNI2-AS, ES
16509 9188 5895 AMAZON-02, US
7545 5718 5022 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4935 4860 ERX-CERNET-BKB China Education and Research Net
39891 4570 4516 ALJAWWALSTC-AS, SA
18403 4211 4186 FPT-AS-AP FPT Telecom Company, VN
7155 4173 4073 VIASAT-SP-BACKBONE, US
20940 4089 3941 AKAMAI-ASN1, NL
11492 4538 3865 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 /11:100 /12:299
/13:582 /14:1195 /15:2061 /16:13499 /17:8329 /18:13847
/19:25156 /20:44444 /21:51618 /22:110552 /23:99361 /24:561642
/25:733 /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 6506 7418 UNI2-AS, ES
8151 5953 11915 UNINET, MX
11492 3451 4538 CABLEONE, US
6327 3364 3555 SHAW, CA
39891 3324 4570 ALJAWWALSTC-AS, SA
7155 3118 4173 VIASAT-SP-BACKBONE, US
8551 2921 3444 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2577 3524 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2154 2499 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2114 3540 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2243 2:1442 3:269 4:5 5:4373 6:159
7:6 8:1539 9:1 11:172 12:1508 13:359
14:2315 15:306 16:203 17:364 18:666 20:308
21:4 22:188 23:6501 24:2540 25:2 27:2529
29:19 31:2551 32:74 34:26 35:118 36:2005
37:4469 38:5454 39:866 40:129 41:3996 42:2050
43:2293 44:326 45:16755 46:4370 47:371 49:1877
50:1878 51:578 52:1589 54:395 55:961 56:5
57:127 58:1873 59:1162 60:1010 61:2526 62:2658
63:1908 64:5524 65:2348 66:5011 67:3052 68:1345
69:4138 70:1185 71:627 72:2939 74:2637 75:1564
76:640 77:2329 78:1827 79:3010 80:2110 81:1836
82:1528 83:1303 84:1552 85:3017 86:766 87:1944
88:1195 89:3950 90:624 91:7878 92:2077 93:2628
94:3577 95:3998 96:1305 97:315 98:1085 99:735
100:91 101:1145 102:2913 103:32033 104:4791 105:577
106:991 107:2787 108:1137 109:4249 110:2138 111:3173
112:2065 113:1817 114:1701 115:1980 116:1926 117:2448
118:2686 119:1962 120:1791 121:1222 122:2620 123:2220
124:1622 125:2627 128:1451 129:925 130:1042 131:1973
132:823 133:408 134:1771 135:301 136:910 137:980
138:2682 139:1592 140:1321 141:1328 142:1545 143:1518
144:1000 145:346 146:1966 147:1618 148:2463 149:2364
150:874 151:1241 152:1850 153:536 154:5253 155:1398
156:2050 157:1356 158:1061 159:2200 160:2620 161:1594
162:3505 163:1624 164:1696 165:1844 166:1071 167:1751
168:3862 169:795 170:4642 171:949 172:3880 173:3008
174:981 175:1191 176:3617 177:4539 178:3534 179:2134
180:2500 181:3590 182:3375 183:1990 184:2273 185:20630
186:4702 187:4192 188:4060 189:3915 190:9339 191:1412
192:11004 193:8966 194:7316 195:5232 196:3131 197:2564
198:6029 199:6383 200:8037 201:6188 202:10581 203:10015
204:4564 205:3689 206:4411 207:3503 208:4121 209:4917
210:4491 211:2540 212:4245 213:3400 214:1116 215:71
216:6736 217:2766 218:1308 219:583 220:2032 221:986
222:848 223:2176
End of report
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