[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Aug 25 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 26 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: 928003
Prefixes after maximum aggregation (per Origin AS): 352092
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 452650
Total ASes present in the Internet Routing Table: 74761
Prefixes per ASN: 12.41
Origin-only ASes present in the Internet Routing Table: 64180
Origin ASes announcing only one prefix: 26379
Transit ASes present in the Internet Routing Table: 10581
Transit-only ASes present in the Internet Routing Table: 457
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: 995
Number of instances of unregistered ASNs: 997
Number of 32-bit ASNs allocated by the RIRs: 42501
Number of 32-bit ASNs visible in the Routing Table: 35005
Prefixes from 32-bit ASNs in the Routing Table: 174578
Number of bogon 32-bit ASNs visible in the Routing Table: 29
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 550
Number of addresses announced to Internet: 3056713472
Equivalent to 182 /8s, 49 /16s and 191 /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: 309148
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 246403
Total APNIC prefixes after maximum aggregation: 70479
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 240069
Unique aggregates announced from the APNIC address blocks: 98774
APNIC Region origin ASes present in the Internet Routing Table: 13598
APNIC Prefixes per ASN: 17.65
APNIC Region origin ASes announcing only one prefix: 4033
APNIC Region transit ASes present in the Internet Routing Table: 1802
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 25
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8921
Number of APNIC addresses announced to Internet: 773327744
Equivalent to 46 /8s, 24 /16s and 11 /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: 271744
Total ARIN prefixes after maximum aggregation: 123766
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 273939
Unique aggregates announced from the ARIN address blocks: 131069
ARIN Region origin ASes present in the Internet Routing Table: 19105
ARIN Prefixes per ASN: 14.34
ARIN Region origin ASes announcing only one prefix: 6978
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: 4824
Number of ARIN addresses announced to Internet: 1280067328
Equivalent to 76 /8s, 76 /16s and 71 /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: 260454
Total RIPE prefixes after maximum aggregation: 122667
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 257184
Unique aggregates announced from the RIPE address blocks: 159980
RIPE Region origin ASes present in the Internet Routing Table: 28402
RIPE Prefixes per ASN: 9.06
RIPE Region origin ASes announcing only one prefix: 12046
RIPE Region transit ASes present in the Internet Routing Table: 3939
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: 11303
Number of RIPE addresses announced to Internet: 716498048
Equivalent to 42 /8s, 180 /16s and 228 /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: 118445
Total LACNIC prefixes after maximum aggregation: 28558
LACNIC Deaggregation factor: 4.15
Prefixes being announced from the LACNIC address blocks: 117470
Unique aggregates announced from the LACNIC address blocks: 49577
LACNIC Region origin ASes present in the Internet Routing Table: 11022
LACNIC Prefixes per ASN: 10.66
LACNIC Region origin ASes announcing only one prefix: 2702
LACNIC Region transit ASes present in the Internet Routing Table: 2325
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: 8832
Number of LACNIC addresses announced to Internet: 178574592
Equivalent to 10 /8s, 164 /16s and 213 /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: 29962
Total AfriNIC prefixes after maximum aggregation: 5925
AfriNIC Deaggregation factor: 5.06
Prefixes being announced from the AfriNIC address blocks: 38791
Unique aggregates announced from the AfriNIC address blocks: 12791
AfriNIC Region origin ASes present in the Internet Routing Table: 1785
AfriNIC Prefixes per ASN: 21.73
AfriNIC Region origin ASes announcing only one prefix: 620
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: 40
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1125
Number of AfriNIC addresses announced to Internet: 107782400
Equivalent to 6 /8s, 108 /16s and 161 /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 9528 8729 40 CHINAMOBILE-CN China Mobile Communicati
7545 5704 784 687 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4862 4193 76 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 3337 1840 97 VNPT-AS-VN VNPT Corp, VN
9498 3106 498 251 BBIL-AP BHARTI Airtel Ltd., IN
7552 2933 1331 21 VIETEL-AS-AP Viettel Group, VN
4766 2559 11271 592 KIXS-AS-KR Korea Telecom, KR
24560 2489 847 403 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 8854 10952 3248 AMAZON-02, US
11492 4524 300 643 CABLEONE, US
7155 4179 288 101 VIASAT-SP-BACKBONE, US
22773 3568 3056 314 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3527 1319 66 SHAW, CA
749 3146 54960 2398 DNIC-AS-00749, US
16625 3073 1486 2316 AKAMAI-AS, US
367 2978 3812 1401 DNIC-ASBLK-00306-00371, US
396982 2687 3596 387 GOOGLE-CLOUD-PLATFORM, US
30036 2501 358 372 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 7342 1713 145 UNI2-AS, ES
39891 4897 290 61 ALJAWWALSTC-AS, SA
20940 4083 3398 155 AKAMAI-ASN1, NL
8551 3462 368 34 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2984 2296 916 ROSTELECOM-AS, RU
9009 2652 246 1374 M247, RO
34984 2329 362 595 TELLCOM-AS, TR
58224 1750 922 526 TCI, IR
13188 1606 100 27 TRIOLAN, UA
61317 1524 102 1186 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 11660 3357 602 UNINET, MX
10620 3535 506 849 Telmex Colombia S.A., CO
13999 2450 366 644 Mega Cable, S.A. de C.V., MX
11830 1997 369 64 Instituto Costarricense de Electricidad
28573 1316 2324 233 Claro NXT Telecomunicacoes Ltda, BR
6503 1301 344 509 Axtel, S.A.B. de C.V., MX
3816 1289 757 188 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
11664 1117 181 436 Techtel LMDS Comunicaciones Interactiva
6147 1113 370 22 Telefonica del Peru S.A.A., PE
26615 1035 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 1594 393 19 LINKdotNET-AS, EG
24835 1503 533 27 RAYA-AS, EG
36992 1338 1518 280 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1049 67 45 ORANGE-COTE-IVOIRE, CI
36935 903 520 35 Vodafone-, EG
6713 550 1861 34 IAM-AS, MA
15399 533 55 51 WANANCHI-, KE
24757 478 73 5 EthioNet-AS, ET
37342 467 32 1 MOVITEL, MZ
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 11660 3357 602 UNINET, MX
9808 9528 8729 40 CHINAMOBILE-CN China Mobile Communicati
16509 8854 10952 3248 AMAZON-02, US
12479 7342 1713 145 UNI2-AS, ES
7545 5704 784 687 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 4524 300 643 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 9528 9488 CHINAMOBILE-CN China Mobile Communications Grou
12479 7342 7197 UNI2-AS, ES
16509 8854 5606 AMAZON-02, US
7545 5704 5017 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 4330 4305 FPT-AS-AP FPT Telecom Company, VN
7155 4179 4078 VIASAT-SP-BACKBONE, US
20940 4083 3928 AKAMAI-ASN1, NL
11492 4524 3881 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
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
41.57.124.0/22 Origin: 37442 RESERVED, ZZ
41.57.124.0/22 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 /12:298
/13:579 /14:1196 /15:2068 /16:13516 /17:8275 /18:13870
/19:25159 /20:44528 /21:51332 /22:110066 /23:99058 /24:557142
/25:745 /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 6428 7342 UNI2-AS, ES
8151 5702 11660 UNINET, MX
39891 3632 4897 ALJAWWALSTC-AS, SA
11492 3434 4524 CABLEONE, US
6327 3337 3527 SHAW, CA
7155 3124 4179 VIASAT-SP-BACKBONE, US
8551 2930 3462 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2612 3568 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2158 2501 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2098 3535 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2258 2:1382 3:228 4:5 5:4547 6:138
7:6 8:1550 9:1 11:172 12:1506 13:369
14:2302 15:301 16:196 17:372 18:613 20:280
21:4 22:188 23:6388 24:2492 25:6 27:2496
29:19 31:2534 32:81 34:25 35:118 36:1998
37:4613 38:5155 39:864 40:147 41:4048 42:2093
43:2324 44:322 45:16605 46:4290 47:384 49:1808
50:1869 51:595 52:1595 54:389 55:962 56:8
57:120 58:1864 59:1169 60:995 61:2483 62:2692
63:1922 64:5566 65:2334 66:4943 67:3024 68:1340
69:4138 70:1194 71:656 72:2957 74:2621 75:1563
76:622 77:2438 78:1834 79:2989 80:2122 81:1825
82:1458 83:1282 84:1528 85:2982 86:755 87:2000
88:1175 89:3862 90:617 91:7803 92:2068 93:2613
94:3533 95:4012 96:1294 97:317 98:1079 99:735
100:90 101:1077 102:2914 103:32021 104:4585 105:553
106:891 107:2585 108:1127 109:4263 110:2114 111:3186
112:2080 113:1813 114:1660 115:1987 116:1927 117:2452
118:2684 119:1985 120:1813 121:1147 122:2582 123:2184
124:1623 125:2526 128:1465 129:928 130:1033 131:1955
132:819 133:420 134:1791 135:306 136:911 137:974
138:2637 139:1583 140:1237 141:1293 142:1486 143:1493
144:982 145:345 146:1963 147:1610 148:2450 149:2141
150:870 151:1229 152:1860 153:518 154:4792 155:1386
156:1935 157:1321 158:1082 159:2230 160:2612 161:1586
162:3525 163:1596 164:1710 165:1830 166:980 167:1727
168:3849 169:913 170:4611 171:873 172:3675 173:2981
174:990 175:1198 176:3771 177:4491 178:3541 179:2128
180:2423 181:3453 182:3392 183:1998 184:2284 185:20521
186:4752 187:4094 188:4171 189:3780 190:9278 191:1331
192:10934 193:8953 194:7304 195:5201 196:3122 197:2459
198:6015 199:6079 200:7941 201:6036 202:10547 203:10025
204:4543 205:3662 206:4327 207:3482 208:4134 209:4928
210:4471 211:2536 212:4237 213:3587 214:1090 215:59
216:6665 217:2778 218:1286 219:576 220:2032 221:977
222:837 223:2171
End of report
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