[afnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Sep 1 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 02 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: 927029
Prefixes after maximum aggregation (per Origin AS): 352283
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 452648
Total ASes present in the Internet Routing Table: 74745
Prefixes per ASN: 12.40
Origin-only ASes present in the Internet Routing Table: 64206
Origin ASes announcing only one prefix: 26346
Transit ASes present in the Internet Routing Table: 10539
Transit-only ASes present in the Internet Routing Table: 456
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: 1011
Number of instances of unregistered ASNs: 1013
Number of 32-bit ASNs allocated by the RIRs: 42560
Number of 32-bit ASNs visible in the Routing Table: 35031
Prefixes from 32-bit ASNs in the Routing Table: 174588
Number of bogon 32-bit ASNs visible in the Routing Table: 42
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 546
Number of addresses announced to Internet: 3056681728
Equivalent to 182 /8s, 49 /16s and 67 /24s
Percentage of available address space announced: 82.6
Percentage of allocated address space announced: 82.6
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: 308479
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 246230
Total APNIC prefixes after maximum aggregation: 70545
APNIC Deaggregation factor: 3.49
Prefixes being announced from the APNIC address blocks: 239962
Unique aggregates announced from the APNIC address blocks: 98716
APNIC Region origin ASes present in the Internet Routing Table: 13608
APNIC Prefixes per ASN: 17.63
APNIC Region origin ASes announcing only one prefix: 4036
APNIC Region transit ASes present in the Internet Routing Table: 1798
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8936
Number of APNIC addresses announced to Internet: 772978304
Equivalent to 46 /8s, 18 /16s and 182 /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: 272068
Total ARIN prefixes after maximum aggregation: 123862
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 274437
Unique aggregates announced from the ARIN address blocks: 131388
ARIN Region origin ASes present in the Internet Routing Table: 19097
ARIN Prefixes per ASN: 14.37
ARIN Region origin ASes announcing only one prefix: 6956
ARIN Region transit ASes present in the Internet Routing Table: 1957
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: 4826
Number of ARIN addresses announced to Internet: 1280142336
Equivalent to 76 /8s, 77 /16s and 108 /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: 259870
Total RIPE prefixes after maximum aggregation: 122697
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 256375
Unique aggregates announced from the RIPE address blocks: 159997
RIPE Region origin ASes present in the Internet Routing Table: 28383
RIPE Prefixes per ASN: 9.03
RIPE Region origin ASes announcing only one prefix: 12032
RIPE Region transit ASes present in the Internet Routing Table: 3929
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: 11305
Number of RIPE addresses announced to Internet: 716752256
Equivalent to 42 /8s, 184 /16s and 197 /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: 118155
Total LACNIC prefixes after maximum aggregation: 28527
LACNIC Deaggregation factor: 4.14
Prefixes being announced from the LACNIC address blocks: 117183
Unique aggregates announced from the LACNIC address blocks: 49270
LACNIC Region origin ASes present in the Internet Routing Table: 11024
LACNIC Prefixes per ASN: 10.63
LACNIC Region origin ASes announcing only one prefix: 2701
LACNIC Region transit ASes present in the Internet Routing Table: 2316
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: 8838
Number of LACNIC addresses announced to Internet: 178604032
Equivalent to 10 /8s, 165 /16s and 72 /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: 29695
Total AfriNIC prefixes after maximum aggregation: 5954
AfriNIC Deaggregation factor: 4.99
Prefixes being announced from the AfriNIC address blocks: 38526
Unique aggregates announced from the AfriNIC address blocks: 12822
AfriNIC Region origin ASes present in the Internet Routing Table: 1785
AfriNIC Prefixes per ASN: 21.58
AfriNIC Region origin ASes announcing only one prefix: 621
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: 1126
Number of AfriNIC addresses announced to Internet: 107749888
Equivalent to 6 /8s, 108 /16s and 34 /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 9498 8729 40 CHINAMOBILE-CN China Mobile Communicati
7545 5726 784 688 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4867 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4330 347 25 FPT-AS-AP FPT Telecom Company, VN
7713 3596 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3339 1840 97 VNPT-AS-VN VNPT Corp, VN
9498 3116 498 251 BBIL-AP BHARTI Airtel Ltd., IN
7552 2935 1330 20 VIETEL-AS-AP Viettel Group, VN
4766 2559 11271 594 KIXS-AS-KR Korea Telecom, KR
24560 2490 847 397 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 9016 10983 3266 AMAZON-02, US
11492 4523 300 648 CABLEONE, US
7155 4179 288 101 VIASAT-SP-BACKBONE, US
22773 3559 3056 314 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3535 1319 66 SHAW, CA
749 3146 54960 2398 DNIC-AS-00749, US
16625 3042 1467 2297 AKAMAI-AS, US
367 2966 3835 1395 DNIC-ASBLK-00306-00371, US
396982 2688 3596 387 GOOGLE-CLOUD-PLATFORM, US
30036 2498 358 376 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 7346 1713 145 UNI2-AS, ES
39891 4897 290 61 ALJAWWALSTC-AS, SA
20940 4090 3398 153 AKAMAI-ASN1, NL
8551 3459 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2983 2296 916 ROSTELECOM-AS, RU
9009 2674 247 1381 M247, RO
34984 2328 362 596 TELLCOM-AS, TR
58224 1749 933 521 TCI, IR
13188 1606 100 27 TRIOLAN, UA
61317 1510 101 1176 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 11521 3362 597 UNINET, MX
10620 3537 506 849 Telmex Colombia S.A., CO
13999 2453 364 642 Mega Cable, S.A. de C.V., MX
11830 1996 369 64 Instituto Costarricense de Electricidad
28573 1317 2324 232 Claro NXT Telecomunicacoes Ltda, BR
6503 1302 344 510 Axtel, S.A.B. de C.V., MX
3816 1294 764 196 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
11664 1121 182 434 Techtel LMDS Comunicaciones Interactiva
6147 1113 370 22 Telefonica del Peru S.A.A., PE
26615 1015 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 1593 393 19 LINKdotNET-AS, EG
24835 1457 497 26 RAYA-AS, EG
36992 1356 1518 281 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1047 67 45 ORANGE-COTE-IVOIRE, CI
36935 781 520 36 Vodafone-, EG
6713 551 1861 34 IAM-AS, MA
15399 533 55 51 WANANCHI-, KE
37342 465 32 1 MOVITEL, MZ
24757 458 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 11521 3362 597 UNINET, MX
9808 9498 8729 40 CHINAMOBILE-CN China Mobile Communicati
16509 9016 10983 3266 AMAZON-02, US
12479 7346 1713 145 UNI2-AS, ES
7545 5726 784 688 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4897 290 61 ALJAWWALSTC-AS, SA
4538 4867 4192 75 ERX-CERNET-BKB China Education and Rese
11492 4523 300 648 CABLEONE, US
18403 4330 347 25 FPT-AS-AP FPT Telecom Company, VN
7155 4179 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 9498 9458 CHINAMOBILE-CN China Mobile Communications Grou
12479 7346 7201 UNI2-AS, ES
16509 9016 5750 AMAZON-02, US
7545 5726 5038 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4897 4836 ALJAWWALSTC-AS, SA
4538 4867 4792 ERX-CERNET-BKB China Education and Research Net
18403 4330 4305 FPT-AS-AP FPT Telecom Company, VN
7155 4179 4078 VIASAT-SP-BACKBONE, US
20940 4090 3937 AKAMAI-ASN1, NL
11492 4523 3875 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
23.161.72.0/24 Origin: 18646 BITMAX, US
23.161.72.0/24 Transit: 1299 TWELVE99 Arelion, fka Telia Carrier, SE
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
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 /12:298
/13:579 /14:1197 /15:2067 /16:13508 /17:8287 /18:13858
/19:25153 /20:44468 /21:51074 /22:109927 /23:99012 /24:556687
/25:743 /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 6432 7346 UNI2-AS, ES
8151 5678 11521 UNINET, MX
39891 3632 4897 ALJAWWALSTC-AS, SA
11492 3433 4523 CABLEONE, US
6327 3345 3535 SHAW, CA
7155 3124 4179 VIASAT-SP-BACKBONE, US
8551 2927 3459 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2603 3559 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2156 2498 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2100 3537 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2255 2:1388 3:250 4:5 5:4550 6:137
7:6 8:1550 9:1 11:172 12:1510 13:371
14:2313 15:302 16:196 17:370 18:633 20:281
21:4 22:188 23:6404 24:2503 25:6 27:2503
29:19 31:2531 32:80 34:25 35:118 36:1997
37:4523 38:5188 39:869 40:147 41:4015 42:2107
43:2283 44:322 45:16601 46:4279 47:386 49:1806
50:1866 51:595 52:1597 54:392 55:964 56:8
57:121 58:1865 59:1173 60:999 61:2499 62:2684
63:1928 64:5581 65:2325 66:4935 67:3029 68:1329
69:4139 70:1192 71:657 72:2962 74:2619 75:1565
76:623 77:2332 78:1834 79:2985 80:2113 81:1830
82:1460 83:1286 84:1516 85:2977 86:749 87:1991
88:1174 89:3837 90:617 91:7809 92:2066 93:2625
94:3527 95:4010 96:1296 97:321 98:1077 99:734
100:90 101:1078 102:2883 103:31999 104:4592 105:558
106:891 107:2599 108:1136 109:4229 110:2133 111:3185
112:2068 113:1812 114:1660 115:1988 116:1914 117:2440
118:2687 119:1988 120:1809 121:1152 122:2584 123:2186
124:1624 125:2522 128:1459 129:929 130:1038 131:1956
132:819 133:419 134:1791 135:307 136:911 137:970
138:2626 139:1584 140:1255 141:1294 142:1489 143:1483
144:998 145:346 146:1947 147:1607 148:2454 149:2175
150:867 151:1232 152:1874 153:512 154:4887 155:1394
156:1962 157:1323 158:1078 159:2232 160:2582 161:1587
162:3517 163:1593 164:1711 165:1827 166:1027 167:1733
168:3723 169:902 170:4669 171:872 172:3681 173:2962
174:990 175:1201 176:3790 177:4447 178:3549 179:2120
180:2427 181:3448 182:3356 183:1990 184:2286 185:20515
186:4720 187:4112 188:4158 189:3715 190:9263 191:1345
192:10959 193:8956 194:7264 195:5209 196:3108 197:2445
198:6010 199:6117 200:7955 201:6025 202:10548 203:10008
204:4550 205:3655 206:4327 207:3472 208:4148 209:4935
210:4473 211:2539 212:4230 213:3410 214:1094 215:59
216:6694 217:2771 218:1286 219:574 220:2032 221:978
222:837 223:2169
End of report
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