[SANOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Jul 21 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
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 22 Jul, 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: 927100
Prefixes after maximum aggregation (per Origin AS): 351578
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 452379
Total ASes present in the Internet Routing Table: 74596
Prefixes per ASN: 12.43
Origin-only ASes present in the Internet Routing Table: 64039
Origin ASes announcing only one prefix: 26302
Transit ASes present in the Internet Routing Table: 10557
Transit-only ASes present in the Internet Routing Table: 450
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 68
Max AS path prepend of ASN (263725) 64
Prefixes from unregistered ASNs in the Routing Table: 1101
Number of instances of unregistered ASNs: 1103
Number of 32-bit ASNs allocated by the RIRs: 42276
Number of 32-bit ASNs visible in the Routing Table: 34837
Prefixes from 32-bit ASNs in the Routing Table: 173955
Number of bogon 32-bit ASNs visible in the Routing Table: 34
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 611
Number of addresses announced to Internet: 3054068736
Equivalent to 182 /8s, 9 /16s and 100 /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: 308840
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 246161
Total APNIC prefixes after maximum aggregation: 70004
APNIC Deaggregation factor: 3.52
Prefixes being announced from the APNIC address blocks: 239893
Unique aggregates announced from the APNIC address blocks: 98720
APNIC Region origin ASes present in the Internet Routing Table: 13527
APNIC Prefixes per ASN: 17.73
APNIC Region origin ASes announcing only one prefix: 4004
APNIC Region transit ASes present in the Internet Routing Table: 1797
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 28
Number of APNIC region 32-bit ASNs visible in the Routing Table: 8850
Number of APNIC addresses announced to Internet: 773626240
Equivalent to 46 /8s, 28 /16s and 153 /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: 271793
Total ARIN prefixes after maximum aggregation: 123669
ARIN Deaggregation factor: 2.20
Prefixes being announced from the ARIN address blocks: 274020
Unique aggregates announced from the ARIN address blocks: 130777
ARIN Region origin ASes present in the Internet Routing Table: 19095
ARIN Prefixes per ASN: 14.35
ARIN Region origin ASes announcing only one prefix: 6959
ARIN Region transit ASes present in the Internet Routing Table: 1953
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: 1277193984
Equivalent to 76 /8s, 32 /16s and 111 /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: 260013
Total RIPE prefixes after maximum aggregation: 122678
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 256847
Unique aggregates announced from the RIPE address blocks: 160046
RIPE Region origin ASes present in the Internet Routing Table: 28352
RIPE Prefixes per ASN: 9.06
RIPE Region origin ASes announcing only one prefix: 12035
RIPE Region transit ASes present in the Internet Routing Table: 3944
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 34
Number of RIPE region 32-bit ASNs visible in the Routing Table: 11247
Number of RIPE addresses announced to Internet: 716894592
Equivalent to 42 /8s, 186 /16s and 241 /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
196608-213403
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: 118670
Total LACNIC prefixes after maximum aggregation: 28610
LACNIC Deaggregation factor: 4.15
Prefixes being announced from the LACNIC address blocks: 117785
Unique aggregates announced from the LACNIC address blocks: 49635
LACNIC Region origin ASes present in the Internet Routing Table: 11009
LACNIC Prefixes per ASN: 10.70
LACNIC Region origin ASes announcing only one prefix: 2693
LACNIC Region transit ASes present in the Internet Routing Table: 2334
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: 8811
Number of LACNIC addresses announced to Internet: 178450944
Equivalent to 10 /8s, 162 /16s and 242 /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: 29362
Total AfriNIC prefixes after maximum aggregation: 5893
AfriNIC Deaggregation factor: 4.98
Prefixes being announced from the AfriNIC address blocks: 37944
Unique aggregates announced from the AfriNIC address blocks: 12692
AfriNIC Region origin ASes present in the Internet Routing Table: 1765
AfriNIC Prefixes per ASN: 21.50
AfriNIC Region origin ASes announcing only one prefix: 611
AfriNIC Region transit ASes present in the Internet Routing Table: 326
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: 1111
Number of AfriNIC addresses announced to Internet: 107557632
Equivalent to 6 /8s, 105 /16s and 51 /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 9527 8706 40 CHINAMOBILE-CN China Mobile Communicati
7545 5686 784 692 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4857 4192 75 ERX-CERNET-BKB China Education and Rese
18403 4241 347 25 FPT-AS-AP FPT Telecom Company, VN
7713 3588 1043 63 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3381 1856 96 VNPT-AS-VN VNPT Corp, VN
7552 3345 1331 21 VIETEL-AS-AP Viettel Group, VN
9498 3048 497 247 BBIL-AP BHARTI Airtel Ltd., IN
4766 2545 11271 592 KIXS-AS-KR Korea Telecom, KR
24560 2452 835 443 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 8701 10914 3133 AMAZON-02, US
11492 4516 300 615 CABLEONE, US
7155 4194 289 101 VIASAT-SP-BACKBONE, US
22773 3542 3054 269 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3525 1319 66 SHAW, CA
16625 3168 1577 2375 AKAMAI-AS, US
749 3140 54962 2392 DNIC-AS-00749, US
367 2762 3753 1322 DNIC-ASBLK-00306-00371, US
396982 2677 3595 383 GOOGLE-CLOUD-PLATFORM, US
30036 2514 362 355 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 7299 1706 141 UNI2-AS, ES
39891 4897 290 61 ALJAWWALSTC-AS, SA
20940 4092 3398 161 AKAMAI-ASN1, NL
8551 3461 368 33 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2971 2294 913 ROSTELECOM-AS, RU
9009 2660 246 1381 M247, RO
34984 2313 361 608 TELLCOM-AS, TR
58224 1824 944 540 TCI, IR
6849 1798 307 17 UKRTELNET, UA
13188 1606 100 27 TRIOLAN, UA
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 11606 3358 592 UNINET, MX
10620 3529 507 836 Telmex Colombia S.A., CO
13999 2409 361 631 Mega Cable, S.A. de C.V., MX
11830 2107 369 64 Instituto Costarricense de Electricidad
28573 1317 2322 238 Claro NXT Telecomunicacoes Ltda, BR
3816 1300 767 172 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6503 1300 344 511 Axtel, S.A.B. de C.V., MX
6147 1130 370 22 Telefonica del Peru S.A.A., PE
11664 1104 177 436 Techtel LMDS Comunicaciones Interactiva
26615 1038 2500 48 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 1517 533 27 RAYA-AS, EG
36992 1296 1518 282 ETISALAT-MISR, EG
36903 1242 550 99 MT-MPLS, MA
29571 1052 67 45 ORANGE-COTE-IVOIRE, CI
36935 922 521 43 Vodafone-, EG
6713 551 1861 34 IAM-AS, MA
37342 505 32 1 MOVITEL, MZ
24757 485 73 5 EthioNet-AS, ET
15399 458 54 50 WANANCHI-, KE
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 11606 3358 592 UNINET, MX
9808 9527 8706 40 CHINAMOBILE-CN China Mobile Communicati
16509 8701 10914 3133 AMAZON-02, US
12479 7299 1706 141 UNI2-AS, ES
7545 5686 784 692 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4897 290 61 ALJAWWALSTC-AS, SA
4538 4857 4192 75 ERX-CERNET-BKB China Education and Rese
11492 4516 300 615 CABLEONE, US
18403 4241 347 25 FPT-AS-AP FPT Telecom Company, VN
7155 4194 289 101 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 9527 9487 CHINAMOBILE-CN China Mobile Communications Grou
12479 7299 7158 UNI2-AS, ES
16509 8701 5568 AMAZON-02, US
7545 5686 4994 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4897 4836 ALJAWWALSTC-AS, SA
4538 4857 4782 ERX-CERNET-BKB China Education and Research Net
18403 4241 4216 FPT-AS-AP FPT Telecom Company, VN
7155 4194 4093 VIASAT-SP-BACKBONE, US
20940 4092 3931 AKAMAI-ASN1, NL
11492 4516 3901 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
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
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 UNASSIGNED
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.158.88.0/24 Origin: 20473 AS-CHOOPA, US
23.158.88.0/24 Transit: 3257 GTT-BACKBONE GTT, US
23.176.160.0/24 Origin: 397327 UNASSIGNED
23.176.160.0/24 Transit: 19108 SUDDENLINK-COMMUNICATIONS, US
27.100.7.0/24 Origin: 56096 UNASSIGNED
27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet
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 /12:296
/13:576 /14:1198 /15:2073 /16:13485 /17:8280 /18:13845
/19:25211 /20:44431 /21:51530 /22:110165 /23:98844 /24:556249
/25:746 /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 6387 7299 UNI2-AS, ES
8151 5540 11606 UNINET, MX
39891 3632 4897 ALJAWWALSTC-AS, SA
11492 3425 4516 CABLEONE, US
6327 3335 3525 SHAW, CA
7155 3139 4194 VIASAT-SP-BACKBONE, US
8551 2930 3461 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2607 3542 ASN-CXA-ALL-CCI-22773-RDC, US
30036 2169 2514 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2088 3529 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2210 2:1354 3:230 4:5 5:4499 6:131
7:6 8:1552 9:1 11:172 12:1522 13:379
14:2321 15:301 16:198 17:374 18:523 20:268
21:4 22:188 23:6374 24:2614 25:4 27:2489
29:19 31:2530 32:81 34:25 35:114 36:1983
37:4694 38:5030 39:829 40:152 41:3844 42:2026
43:2326 44:303 45:16675 46:4376 47:377 49:1773
50:1856 51:584 52:1592 54:397 55:975 56:8
57:120 58:1891 59:1147 60:984 61:2498 62:2658
63:1922 64:5571 65:2316 66:4948 67:3049 68:1328
69:4092 70:1210 71:677 72:2984 74:2648 75:1581
76:617 77:2447 78:1826 79:2977 80:2110 81:1804
82:1491 83:1271 84:1539 85:2983 86:765 87:1992
88:1185 89:3837 90:613 91:7795 92:2049 93:2605
94:3580 95:4047 96:1306 97:331 98:1149 99:734
100:95 101:1082 102:2813 103:31766 104:4577 105:501
106:887 107:2556 108:1078 109:4252 110:2111 111:3188
112:2060 113:1811 114:1643 115:1970 116:1912 117:2516
118:2633 119:1983 120:1817 121:1138 122:2573 123:2184
124:1614 125:2498 128:1426 129:1047 130:1015 131:1967
132:813 133:422 134:1801 135:307 136:888 137:962
138:2505 139:1584 140:1259 141:1300 142:1476 143:1493
144:987 145:341 146:1959 147:1611 148:2430 149:2164
150:882 151:1166 152:1832 153:500 154:4683 155:1368
156:1882 157:1320 158:1098 159:2270 160:2585 161:1554
162:3513 163:1566 164:1669 165:1854 166:1067 167:1729
168:3882 169:940 170:4597 171:891 172:3647 173:2974
174:1047 175:1192 176:3739 177:4496 178:3614 179:2157
180:2455 181:3493 182:3443 183:1983 184:2314 185:20517
186:4754 187:4103 188:4127 189:3718 190:9244 191:1391
192:10936 193:8931 194:7321 195:5173 196:3115 197:2292
198:6013 199:6090 200:8061 201:5932 202:10593 203:10131
204:4572 205:3679 206:4356 207:3457 208:4143 209:4927
210:4474 211:2532 212:4255 213:3587 214:1092 215:60
216:6669 217:2752 218:1277 219:584 220:2006 221:961
222:854 223:2188
End of report
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