[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Aug 11 18:02:07 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 12 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: 927197
Prefixes after maximum aggregation (per Origin AS): 351848
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 452652
Total ASes present in the Internet Routing Table: 74689
Prefixes per ASN: 12.41
Origin-only ASes present in the Internet Routing Table: 64139
Origin ASes announcing only one prefix: 26321
Transit ASes present in the Internet Routing Table: 10550
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: 68
Max AS path prepend of ASN (263725) 64
Prefixes from unregistered ASNs in the Routing Table: 1089
Number of instances of unregistered ASNs: 1091
Number of 32-bit ASNs allocated by the RIRs: 42412
Number of 32-bit ASNs visible in the Routing Table: 34947
Prefixes from 32-bit ASNs in the Routing Table: 174202
Number of bogon 32-bit ASNs visible in the Routing Table: 31
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 583
Number of addresses announced to Internet: 3053031936
Equivalent to 181 /8s, 249 /16s and 146 /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: 99.6
Total number of prefixes smaller than registry allocations: 308731
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 246423
Total APNIC prefixes after maximum aggregation: 70396
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 240152
Unique aggregates announced from the APNIC address blocks: 98847
APNIC Region origin ASes present in the Internet Routing Table: 13588
APNIC Prefixes per ASN: 17.67
APNIC Region origin ASes announcing only one prefix: 4016
APNIC Region transit ASes present in the Internet Routing Table: 1797
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: 8907
Number of APNIC addresses announced to Internet: 773483392
Equivalent to 46 /8s, 26 /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: 271694
Total ARIN prefixes after maximum aggregation: 123742
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 273727
Unique aggregates announced from the ARIN address blocks: 130872
ARIN Region origin ASes present in the Internet Routing Table: 19086
ARIN Prefixes per ASN: 14.34
ARIN Region origin ASes announcing only one prefix: 6964
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: 4818
Number of ARIN addresses announced to Internet: 1276336896
Equivalent to 76 /8s, 19 /16s and 91 /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: 259713
Total RIPE prefixes after maximum aggregation: 122508
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 256719
Unique aggregates announced from the RIPE address blocks: 159957
RIPE Region origin ASes present in the Internet Routing Table: 28386
RIPE Prefixes per ASN: 9.04
RIPE Region origin ASes announcing only one prefix: 12060
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: 34
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11297
Number of RIPE addresses announced to Internet: 716764800
Equivalent to 42 /8s, 184 /16s and 246 /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: 118443
Total LACNIC prefixes after maximum aggregation: 28555
LACNIC Deaggregation factor: 4.15
Prefixes being announced from the LACNIC address blocks: 117519
Unique aggregates announced from the LACNIC address blocks: 49794
LACNIC Region origin ASes present in the Internet Routing Table: 10999
LACNIC Prefixes per ASN: 10.68
LACNIC Region origin ASes announcing only one prefix: 2666
LACNIC Region transit ASes present in the Internet Routing Table: 2324
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 68
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8812
Number of LACNIC addresses announced to Internet: 178495744
Equivalent to 10 /8s, 163 /16s and 161 /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: 29835
Total AfriNIC prefixes after maximum aggregation: 5907
AfriNIC Deaggregation factor: 5.05
Prefixes being announced from the AfriNIC address blocks: 38497
Unique aggregates announced from the AfriNIC address blocks: 12695
AfriNIC Region origin ASes present in the Internet Routing Table: 1769
AfriNIC Prefixes per ASN: 21.76
AfriNIC Region origin ASes announcing only one prefix: 615
AfriNIC Region transit ASes present in the Internet Routing Table: 332
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 40
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1113
Number of AfriNIC addresses announced to Internet: 107537408
Equivalent to 6 /8s, 104 /16s and 228 /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 9532 8706 41 CHINAMOBILE-CN China Mobile Communicati
7545 5699 784 689 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4862 4193 76 ERX-CERNET-BKB China Education and Rese
18403 4223 347 25 FPT-AS-AP FPT Telecom Company, VN
7713 3595 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon
7552 3353 1331 21 VIETEL-AS-AP Viettel Group, VN
45899 3232 1840 97 VNPT-AS-VN VNPT Corp, VN
9498 3071 498 248 BBIL-AP BHARTI Airtel Ltd., IN
4766 2554 11271 592 KIXS-AS-KR Korea Telecom, KR
24560 2481 843 405 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 8814 10964 3185 AMAZON-02, US
11492 4522 300 622 CABLEONE, US
7155 4194 288 101 VIASAT-SP-BACKBONE, US
22773 3554 3053 290 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3527 1319 66 SHAW, CA
749 3149 54961 2401 DNIC-AS-00749, US
16625 3090 1510 2327 AKAMAI-AS, US
367 2973 3824 1409 DNIC-ASBLK-00306-00371, US
396982 2683 3596 388 GOOGLE-CLOUD-PLATFORM, US
30036 2492 357 426 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 7341 1713 145 UNI2-AS, ES
39891 4897 290 61 ALJAWWALSTC-AS, SA
20940 4086 3398 155 AKAMAI-ASN1, NL
8551 3457 368 33 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2972 2294 914 ROSTELECOM-AS, RU
9009 2668 247 1395 M247, RO
34984 2317 362 602 TELLCOM-AS, TR
58224 1818 944 535 TCI, IR
13188 1606 100 27 TRIOLAN, UA
61317 1570 104 1223 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 11464 3357 601 UNINET, MX
10620 3534 507 832 Telmex Colombia S.A., CO
13999 2428 362 636 Mega Cable, S.A. de C.V., MX
11830 1995 369 64 Instituto Costarricense de Electricidad
28573 1314 2324 233 Claro NXT Telecomunicacoes Ltda, BR
6503 1301 344 509 Axtel, S.A.B. de C.V., MX
3816 1300 767 172 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1123 370 22 Telefonica del Peru S.A.A., PE
11664 1113 181 435 Techtel LMDS Comunicaciones Interactiva
26615 1041 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 1588 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
15399 534 54 49 WANANCHI-, KE
37342 480 32 1 MOVITEL, MZ
24757 441 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 11464 3357 601 UNINET, MX
9808 9532 8706 41 CHINAMOBILE-CN China Mobile Communicati
16509 8814 10964 3185 AMAZON-02, US
12479 7341 1713 145 UNI2-AS, ES
7545 5699 784 689 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4897 290 61 ALJAWWALSTC-AS, SA
4538 4862 4193 76 ERX-CERNET-BKB China Education and Rese
11492 4522 300 622 CABLEONE, US
18403 4223 347 25 FPT-AS-AP FPT Telecom Company, VN
7155 4194 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 9532 9491 CHINAMOBILE-CN China Mobile Communications Grou
12479 7341 7196 UNI2-AS, ES
16509 8814 5629 AMAZON-02, US
7545 5699 5010 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4897 4836 ALJAWWALSTC-AS, SA
4538 4862 4786 ERX-CERNET-BKB China Education and Research Net
18403 4223 4198 FPT-AS-AP FPT Telecom Company, VN
7155 4194 4093 VIASAT-SP-BACKBONE, US
20940 4086 3931 AKAMAI-ASN1, NL
11492 4522 3900 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
46990 UNALLOCATED 8.5.242.0/23 3356 LEVEL3, US
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
19695 UNALLOCATED 8.20.161.0/24 7015 COMCAST-7015, 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
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
41.57.124.0/22 Origin: 37442 RESERVED, ZZ
41.57.124.0/22 Transit: 37204 TELONE, ZW
41.57.124.0/23 Origin: 37442 RESERVED, ZZ
41.57.124.0/23 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 /12:295
/13:575 /14:1196 /15:2070 /16:13495 /17:8298 /18:13876
/19:25166 /20:44317 /21:51455 /22:110098 /23:98896 /24:556542
/25:747 /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 6427 7341 UNI2-AS, ES
8151 5505 11464 UNINET, MX
39891 3632 4897 ALJAWWALSTC-AS, SA
11492 3432 4522 CABLEONE, US
6327 3337 3527 SHAW, CA
7155 3139 4194 VIASAT-SP-BACKBONE, US
8551 2926 3457 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2603 3554 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2149 2492 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2092 3534 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2236 2:1342 3:229 4:5 5:4523 6:134
7:6 8:1556 9:1 11:172 12:1516 13:373
14:2289 15:302 16:198 17:375 18:594 20:278
21:4 22:188 23:6402 24:2488 25:6 27:2495
29:19 31:2522 32:81 34:25 35:115 36:1989
37:4643 38:5113 39:840 40:147 41:4033 42:2048
43:2339 44:315 45:16573 46:4302 47:384 49:1788
50:1860 51:585 52:1594 54:391 55:960 56:8
57:120 58:1891 59:1175 60:994 61:2483 62:2691
63:1923 64:5572 65:2289 66:4944 67:3014 68:1323
69:4091 70:1206 71:680 72:2973 74:2623 75:1575
76:620 77:2441 78:1834 79:2976 80:2114 81:1794
82:1495 83:1279 84:1540 85:2980 86:765 87:1986
88:1170 89:3849 90:617 91:7814 92:2064 93:2602
94:3525 95:4013 96:1294 97:319 98:1082 99:735
100:90 101:1075 102:2885 103:31965 104:4555 105:566
106:890 107:2551 108:1118 109:4265 110:2115 111:3186
112:2062 113:1808 114:1652 115:1981 116:1923 117:2493
118:2656 119:1981 120:1799 121:1147 122:2586 123:2190
124:1619 125:2509 128:1446 129:1050 130:1023 131:1971
132:815 133:422 134:1790 135:307 136:903 137:970
138:2650 139:1594 140:1246 141:1296 142:1475 143:1484
144:998 145:342 146:1959 147:1610 148:2437 149:2111
150:881 151:1180 152:1844 153:514 154:4687 155:1377
156:1909 157:1320 158:1083 159:2230 160:2603 161:1570
162:3513 163:1591 164:1716 165:1819 166:990 167:1728
168:3862 169:930 170:4601 171:899 172:3636 173:2980
174:990 175:1195 176:3787 177:4499 178:3551 179:2153
180:2434 181:3506 182:3438 183:1995 184:2297 185:20493
186:4733 187:4093 188:4159 189:3722 190:9240 191:1398
192:10943 193:8952 194:7276 195:5182 196:3109 197:2432
198:6008 199:6079 200:8008 201:5979 202:10563 203:10027
204:4538 205:3658 206:4316 207:3452 208:4165 209:4919
210:4486 211:2533 212:4245 213:3572 214:1092 215:60
216:6699 217:2771 218:1289 219:584 220:2032 221:970
222:836 223:2194
End of report
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