[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Sep 8 18:02:08 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 09 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: 927731
Prefixes after maximum aggregation (per Origin AS): 352669
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 452710
Total ASes present in the Internet Routing Table: 74776
Prefixes per ASN: 12.41
Origin-only ASes present in the Internet Routing Table: 64229
Origin ASes announcing only one prefix: 26357
Transit ASes present in the Internet Routing Table: 10547
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: 70
Max AS path prepend of ASN (263725) 64
Prefixes from unregistered ASNs in the Routing Table: 1053
Number of instances of unregistered ASNs: 1055
Number of 32-bit ASNs allocated by the RIRs: 42576
Number of 32-bit ASNs visible in the Routing Table: 35055
Prefixes from 32-bit ASNs in the Routing Table: 175008
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: 601
Number of addresses announced to Internet: 3056133888
Equivalent to 182 /8s, 40 /16s and 231 /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: 308927
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 246243
Total APNIC prefixes after maximum aggregation: 70661
APNIC Deaggregation factor: 3.48
Prefixes being announced from the APNIC address blocks: 239918
Unique aggregates announced from the APNIC address blocks: 98702
APNIC Region origin ASes present in the Internet Routing Table: 13628
APNIC Prefixes per ASN: 17.60
APNIC Region origin ASes announcing only one prefix: 4057
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: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8946
Number of APNIC addresses announced to Internet: 772854656
Equivalent to 46 /8s, 16 /16s and 211 /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: 271947
Total ARIN prefixes after maximum aggregation: 123794
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 274838
Unique aggregates announced from the ARIN address blocks: 131523
ARIN Region origin ASes present in the Internet Routing Table: 19086
ARIN Prefixes per ASN: 14.40
ARIN Region origin ASes announcing only one prefix: 6946
ARIN Region transit ASes present in the Internet Routing Table: 1964
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: 1279836416
Equivalent to 76 /8s, 72 /16s and 193 /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: 260388
Total RIPE prefixes after maximum aggregation: 123026
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 256431
Unique aggregates announced from the RIPE address blocks: 160008
RIPE Region origin ASes present in the Internet Routing Table: 28388
RIPE Prefixes per ASN: 9.03
RIPE Region origin ASes announcing only one prefix: 12038
RIPE Region transit ASes present in the Internet Routing Table: 3932
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: 11311
Number of RIPE addresses announced to Internet: 716692096
Equivalent to 42 /8s, 183 /16s and 218 /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: 118386
Total LACNIC prefixes after maximum aggregation: 28500
LACNIC Deaggregation factor: 4.15
Prefixes being announced from the LACNIC address blocks: 117393
Unique aggregates announced from the LACNIC address blocks: 49158
LACNIC Region origin ASes present in the Internet Routing Table: 11024
LACNIC Prefixes per ASN: 10.65
LACNIC Region origin ASes announcing only one prefix: 2693
LACNIC Region transit ASes present in the Internet Routing Table: 2318
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: 8841
Number of LACNIC addresses announced to Internet: 178478848
Equivalent to 10 /8s, 163 /16s and 95 /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: 29714
Total AfriNIC prefixes after maximum aggregation: 5967
AfriNIC Deaggregation factor: 4.98
Prefixes being announced from the AfriNIC address blocks: 38550
Unique aggregates announced from the AfriNIC address blocks: 12815
AfriNIC Region origin ASes present in the Internet Routing Table: 1791
AfriNIC Prefixes per ASN: 21.52
AfriNIC Region origin ASes announcing only one prefix: 623
AfriNIC Region transit ASes present in the Internet Routing Table: 334
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: 1130
Number of AfriNIC addresses announced to Internet: 107811840
Equivalent to 6 /8s, 109 /16s and 20 /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 9489 8729 41 CHINAMOBILE-CN China Mobile Communicati
7545 5727 785 689 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4864 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4337 347 25 FPT-AS-AP FPT Telecom Company, VN
7713 3598 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3332 1840 98 VNPT-AS-VN VNPT Corp, VN
9498 3149 498 251 BBIL-AP BHARTI Airtel Ltd., IN
7552 2931 1330 20 VIETEL-AS-AP Viettel Group, VN
4766 2543 11270 601 KIXS-AS-KR Korea Telecom, KR
24560 2498 848 389 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 9060 10989 3267 AMAZON-02, US
11492 4512 299 673 CABLEONE, US
7155 4179 288 101 VIASAT-SP-BACKBONE, US
22773 3551 3056 310 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3536 1319 66 SHAW, CA
749 3152 54959 2404 DNIC-AS-00749, US
16625 3004 1442 2277 AKAMAI-AS, US
367 2967 3827 1395 DNIC-ASBLK-00306-00371, US
396982 2690 3596 387 GOOGLE-CLOUD-PLATFORM, US
30036 2487 356 405 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 7359 1713 145 UNI2-AS, ES
39891 4897 290 61 ALJAWWALSTC-AS, SA
20940 4076 3398 153 AKAMAI-ASN1, NL
8551 3456 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2981 2296 914 ROSTELECOM-AS, RU
9009 2718 252 1391 M247, RO
34984 2328 362 597 TELLCOM-AS, TR
58224 1752 933 517 TCI, IR
13188 1606 100 27 TRIOLAN, UA
61317 1504 101 1169 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 11767 3367 596 UNINET, MX
10620 3538 506 849 Telmex Colombia S.A., CO
13999 2406 343 627 Mega Cable, S.A. de C.V., MX
11830 2002 369 64 Instituto Costarricense de Electricidad
28573 1324 2324 232 Claro NXT Telecomunicacoes Ltda, BR
6503 1302 344 510 Axtel, S.A.B. de C.V., MX
3816 1295 764 191 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
11664 1127 183 427 Techtel LMDS Comunicaciones Interactiva
6147 1112 370 22 Telefonica del Peru S.A.A., PE
26615 1027 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 1357 1518 281 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1045 67 45 ORANGE-COTE-IVOIRE, CI
36935 780 520 36 Vodafone-, EG
6713 550 1861 34 IAM-AS, MA
15399 535 55 52 WANANCHI-, KE
37342 485 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 11767 3367 596 UNINET, MX
9808 9489 8729 41 CHINAMOBILE-CN China Mobile Communicati
16509 9060 10989 3267 AMAZON-02, US
12479 7359 1713 145 UNI2-AS, ES
7545 5727 785 689 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4897 290 61 ALJAWWALSTC-AS, SA
4538 4864 4192 75 ERX-CERNET-BKB China Education and Rese
11492 4512 299 673 CABLEONE, US
18403 4337 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 9489 9448 CHINAMOBILE-CN China Mobile Communications Grou
12479 7359 7214 UNI2-AS, ES
16509 9060 5793 AMAZON-02, US
7545 5727 5038 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4897 4836 ALJAWWALSTC-AS, SA
4538 4864 4789 ERX-CERNET-BKB China Education and Research Net
18403 4337 4312 FPT-AS-AP FPT Telecom Company, VN
7155 4179 4078 VIASAT-SP-BACKBONE, US
20940 4076 3923 AKAMAI-ASN1, NL
11492 4512 3839 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
23.178.240.0/24 Origin: 399517 RESERVED, ZZ
23.178.240.0/24 Transit: 32425 SKB3-ARIN-BGP, US
23.189.192.0/24 Origin: 27593 RESERVED, ZZ
23.189.192.0/24 Transit: 174 COGENT-174, US
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
/13:578 /14:1197 /15:2069 /16:13519 /17:8281 /18:13864
/19:25134 /20:44418 /21:51170 /22:110066 /23:99070 /24:557155
/25:741 /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 6445 7359 UNI2-AS, ES
8151 5800 11767 UNINET, MX
39891 3632 4897 ALJAWWALSTC-AS, SA
11492 3424 4512 CABLEONE, US
6327 3346 3536 SHAW, CA
7155 3124 4179 VIASAT-SP-BACKBONE, US
8551 2924 3456 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2598 3551 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2147 2487 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2101 3538 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2256 2:1394 3:258 4:5 5:4558 6:136
7:6 8:1544 9:1 11:172 12:1511 13:376
14:2319 15:304 16:195 17:370 18:637 20:282
21:4 22:188 23:6373 24:2500 25:6 27:2503
29:19 31:2520 32:80 34:25 35:117 36:1989
37:4531 38:5200 39:870 40:146 41:4009 42:2107
43:2294 44:320 45:16492 46:4306 47:378 49:1817
50:1884 51:596 52:1598 54:394 55:956 56:8
57:122 58:1868 59:1174 60:1001 61:2513 62:2682
63:1914 64:5643 65:2337 66:4913 67:3032 68:1342
69:4140 70:1195 71:658 72:2958 74:2603 75:1562
76:622 77:2324 78:1836 79:2991 80:2113 81:1835
82:1462 83:1288 84:1549 85:3010 86:766 87:1995
88:1170 89:3851 90:618 91:7825 92:2062 93:2624
94:3514 95:4015 96:1297 97:321 98:1083 99:735
100:90 101:1077 102:2862 103:31987 104:4604 105:555
106:896 107:2680 108:1124 109:4221 110:2132 111:3180
112:2067 113:1817 114:1665 115:1975 116:1906 117:2431
118:2688 119:1986 120:1796 121:1160 122:2597 123:2192
124:1624 125:2550 128:1476 129:925 130:1038 131:1948
132:814 133:408 134:1795 135:306 136:911 137:969
138:2632 139:1574 140:1164 141:1294 142:1512 143:1495
144:993 145:346 146:1943 147:1606 148:2453 149:2263
150:869 151:1232 152:1871 153:523 154:4919 155:1378
156:1955 157:1321 158:1084 159:2248 160:2598 161:1584
162:3533 163:1593 164:1702 165:1838 166:1065 167:1723
168:3728 169:909 170:4650 171:865 172:3705 173:2957
174:981 175:1184 176:3777 177:4419 178:3542 179:2128
180:2447 181:3549 182:3358 183:1991 184:2279 185:20518
186:4693 187:4149 188:4166 189:3796 190:9195 191:1450
192:10956 193:8953 194:7257 195:5215 196:3085 197:2471
198:6001 199:6103 200:7945 201:6030 202:10539 203:10000
204:4552 205:3675 206:4362 207:3485 208:4153 209:4923
210:4482 211:2532 212:4223 213:3401 214:1094 215:58
216:6689 217:2779 218:1285 219:575 220:2032 221:978
222:844 223:2162
End of report
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