[menog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri May 20 18:02:48 UTC 2022
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 21 May, 2022
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: 898401
Prefixes after maximum aggregation (per Origin AS): 338496
Deaggregation factor: 2.65
Unique aggregates announced (without unneeded subnets): 432821
Total ASes present in the Internet Routing Table: 73208
Prefixes per ASN: 12.27
Origin-only ASes present in the Internet Routing Table: 62857
Origin ASes announcing only one prefix: 25798
Transit ASes present in the Internet Routing Table: 10351
Transit-only ASes present in the Internet Routing Table: 379
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 66
Max AS path prepend of ASN (267602) 58
Prefixes from unregistered ASNs in the Routing Table: 920
Number of instances of unregistered ASNs: 925
Number of 32-bit ASNs allocated by the RIRs: 39435
Number of 32-bit ASNs visible in the Routing Table: 32698
Prefixes from 32-bit ASNs in the Routing Table: 154112
Number of bogon 32-bit ASNs visible in the Routing Table: 234
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 550
Number of addresses announced to Internet: 3065123456
Equivalent to 182 /8s, 178 /16s and 18 /24s
Percentage of available address space announced: 82.8
Percentage of allocated address space announced: 82.8
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: 305118
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 235350
Total APNIC prefixes after maximum aggregation: 66814
APNIC Deaggregation factor: 3.52
Prefixes being announced from the APNIC address blocks: 230530
Unique aggregates announced from the APNIC address blocks: 94912
APNIC Region origin ASes present in the Internet Routing Table: 12666
APNIC Prefixes per ASN: 18.20
APNIC Region origin ASes announcing only one prefix: 3622
APNIC Region transit ASes present in the Internet Routing Table: 1747
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 32
Number of APNIC region 32-bit ASNs visible in the Routing Table: 7862
Number of APNIC addresses announced to Internet: 774272768
Equivalent to 46 /8s, 38 /16s and 119 /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, 131072-151865
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: 261942
Total ARIN prefixes after maximum aggregation: 120183
ARIN Deaggregation factor: 2.18
Prefixes being announced from the ARIN address blocks: 261791
Unique aggregates announced from the ARIN address blocks: 126089
ARIN Region origin ASes present in the Internet Routing Table: 19046
ARIN Prefixes per ASN: 13.75
ARIN Region origin ASes announcing only one prefix: 6916
ARIN Region transit ASes present in the Internet Routing Table: 1938
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4503
Number of ARIN addresses announced to Internet: 1292504064
Equivalent to 77 /8s, 10 /16s and 12 /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: 257788
Total RIPE prefixes after maximum aggregation: 117753
RIPE Deaggregation factor: 2.19
Prefixes being announced from the RIPE address blocks: 255188
Unique aggregates announced from the RIPE address blocks: 151009
RIPE Region origin ASes present in the Internet Routing Table: 28148
RIPE Prefixes per ASN: 9.07
RIPE Region origin ASes announcing only one prefix: 12033
RIPE Region transit ASes present in the Internet Routing Table: 3967
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 40
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10708
Number of RIPE addresses announced to Internet: 713994624
Equivalent to 42 /8s, 142 /16s and 177 /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: 114731
Total LACNIC prefixes after maximum aggregation: 27608
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 114561
Unique aggregates announced from the LACNIC address blocks: 48615
LACNIC Region origin ASes present in the Internet Routing Table: 10950
LACNIC Prefixes per ASN: 10.46
LACNIC Region origin ASes announcing only one prefix: 2666
LACNIC Region transit ASes present in the Internet Routing Table: 2195
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 66
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8664
Number of LACNIC addresses announced to Internet: 176484608
Equivalent to 10 /8s, 132 /16s and 241 /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: 27670
Total AfriNIC prefixes after maximum aggregation: 5449
AfriNIC Deaggregation factor: 5.08
Prefixes being announced from the AfriNIC address blocks: 35781
Unique aggregates announced from the AfriNIC address blocks: 11747
AfriNIC Region origin ASes present in the Internet Routing Table: 1632
AfriNIC Prefixes per ASN: 21.92
AfriNIC Region origin ASes announcing only one prefix: 561
AfriNIC Region transit ASes present in the Internet Routing Table: 326
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 34
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 961
Number of AfriNIC addresses announced to Internet: 107563520
Equivalent to 6 /8s, 105 /16s and 74 /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 9166 8884 43 CHINAMOBILE-CN China Mobile Communicati
7545 5898 789 695 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4709 4192 75 ERX-CERNET-BKB China Education and Rese
7552 3591 1330 19 VIETEL-AS-AP Viettel Group, VN
7713 3491 1039 53 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 3426 1880 56 VNPT-AS-VN VNPT Corp, VN
4766 2494 11121 601 KIXS-AS-KR Korea Telecom, KR
9498 2408 499 237 BBIL-AP BHARTI Airtel Ltd., IN
45090 2169 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute
4755 2120 438 204 TATACOMM-AS TATA Communications formerl
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 6414 10351 2772 AMAZON-02, US
11492 4510 299 660 CABLEONE, US
22773 3913 3067 353 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3901 264 31 VIASAT-SP-BACKBONE, US
16625 3539 1821 2534 AKAMAI-AS, US
6327 3438 1318 62 SHAW, CA
749 2881 50795 2138 DNIC-AS-00749, US
30036 2634 374 120 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2466 4961 421 CENTURYLINK-US-LEGACY-QWEST, US
20115 2250 3050 492 CHARTER-20115, 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 6799 1730 150 UNI2-AS, ES
9121 6720 1692 17 TTNET, TR
8551 3996 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 3973 3360 201 AKAMAI-ASN1, NL
39891 3819 220 34 ALJAWWALSTC-AS, SA
12389 2949 2273 908 ROSTELECOM-AS, RU
6849 2927 355 21 UKRTELNET, UA
9009 2489 249 1295 M247, GB
34984 2242 357 627 TELLCOM-AS, TR
47331 2087 328 1598 TTNET, TR
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 10596 3396 568 Uninet S.A. de C.V., MX
10620 3472 518 743 Telmex Colombia S.A., CO
11830 2437 369 63 Instituto Costarricense de Electricidad
13999 1823 300 468 Mega Cable, S.A. de C.V., MX
6503 1447 355 527 Axtel, S.A.B. de C.V., MX
28573 1382 2333 255 CLARO S.A., BR
3816 1257 671 148 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1079 369 21 Telefonica del Peru S.A.A., PE
11664 1022 192 445 Techtel LMDS Comunicaciones Interactiva
11172 958 133 61 Alestra, S. de R.L. de C.V., MX
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 1653 393 21 LINKdotNET-AS, EG
24835 1441 497 29 RAYA-AS, EG
36992 1313 1519 263 ETISALAT-MISR, EG
36903 1199 545 114 MT-MPLS, MA
29571 947 65 57 ORANGE-COTE-IVOIRE, CI
36935 619 520 42 Vodafone-, EG
6713 611 1863 34 IAM-AS, MA
15399 516 51 36 WANANCHI-, KE
37342 465 32 1 MOVITEL, MZ
23889 423 232 16 MauritiusTelecom, MU
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 10596 3396 568 Uninet S.A. de C.V., MX
9808 9166 8884 43 CHINAMOBILE-CN China Mobile Communicati
12479 6799 1730 150 UNI2-AS, ES
9121 6720 1692 17 TTNET, TR
16509 6414 10351 2772 AMAZON-02, US
7545 5898 789 695 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4709 4192 75 ERX-CERNET-BKB China Education and Rese
11492 4510 299 660 CABLEONE, US
8551 3996 374 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 3973 3360 201 AKAMAI-ASN1, NL
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 9166 9123 CHINAMOBILE-CN China Mobile Communications Grou
9121 6720 6703 TTNET, TR
12479 6799 6649 UNI2-AS, ES
7545 5898 5203 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4709 4634 ERX-CERNET-BKB China Education and Research Net
8551 3996 3957 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
7155 3901 3870 VIASAT-SP-BACKBONE, US
11492 4510 3850 CABLEONE, US
39891 3819 3785 ALJAWWALSTC-AS, SA
20940 3973 3772 AKAMAI-ASN1, NL
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
65454 PRIVATE 1.9.206.0/24 4788 TMNET-AS-AP TM Net, Internet
398083 UNALLOCATED 5.133.124.0/24 399587 UT, US
33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US
62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US
393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US
18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, 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
23.129.40.0/24 Origin: 6461 ZAYO-6461, US
23.129.40.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.129.56.0/24 Origin: 6461 ZAYO-6461, US
23.129.56.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.129.136.0/24 Origin: 6461 ZAYO-6461, US
23.129.136.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.131.8.0/24 Origin: 3257 GTT-BACKBONE GTT, US
23.131.8.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
23.131.88.0/24 Origin: 3257 GTT-BACKBONE GTT, US
23.131.88.0/24 Transit: 2516 KDDI KDDI CORPORATION, JP
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 /9:13 /10:41 /11:100 /12:303
/13:590 /14:1210 /15:2059 /16:13526 /17:8287 /18:13889
/19:25188 /20:43913 /21:52216 /22:108436 /23:96172 /24:531636
/25:806 /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
9121 5876 6720 TTNET, TR
12479 5775 6799 UNI2-AS, ES
8151 4323 10596 Uninet S.A. de C.V., MX
8551 3462 3996 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
11492 3415 4510 CABLEONE, US
6327 3250 3438 SHAW, CA
39891 3131 3819 ALJAWWALSTC-AS, SA
7155 2991 3901 VIASAT-SP-BACKBONE, US
22773 2918 3913 ASN-CXA-ALL-CCI-22773-RDC, US
6849 2778 2927 UKRTELNET, UA
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1937 2:1021 3:154 4:6 5:3789 6:104
7:5 8:1566 9:1 11:173 12:1711 13:296
14:2382 15:201 16:41 17:384 18:161 20:212
21:4 22:188 23:5668 24:2315 25:6 27:2602
29:19 31:2424 32:95 34:4 35:78 36:1757
37:4424 38:2882 39:698 40:152 41:3966 42:1092
43:2175 44:291 45:16047 46:4139 47:322 49:1701
50:2158 51:108 52:1427 54:369 55:747 56:8
57:59 58:1812 59:1213 60:948 61:2259 62:2513
63:1946 64:5524 65:2313 66:4865 67:2975 68:1193
69:4172 70:1330 71:685 72:3052 74:2651 75:1392
76:579 77:2164 78:3914 79:3112 80:1989 81:1742
82:1494 83:1209 84:1357 85:3666 86:709 87:1959
88:2744 89:3280 90:531 91:7639 92:2017 93:2590
94:3488 95:4773 96:1309 97:349 98:993 99:736
100:76 101:1044 102:2050 103:29071 104:4387 105:463
106:874 107:2517 108:832 109:4258 110:2032 111:3287
112:2031 113:1553 114:1487 115:1976 116:1915 117:2510
118:2330 119:1839 120:1696 121:1076 122:2580 123:2120
124:1586 125:2127 128:1231 129:1104 130:976 131:2063
132:769 133:378 134:1900 135:290 136:880 137:862
138:2443 139:1504 140:861 141:1403 142:1288 143:1441
144:1201 145:346 146:1811 147:1491 148:2217 149:1729
150:851 151:1081 152:1849 153:459 154:3472 155:1418
156:1839 157:1234 158:1045 159:2168 160:2514 161:1275
162:3462 163:1273 164:1650 165:1605 166:721 167:1708
168:3781 169:840 170:4489 171:828 172:3175 173:3144
174:1021 175:1129 176:3589 177:4649 178:3545 179:2034
180:2284 181:3008 182:3250 183:1954 184:2375 185:19492
186:4295 187:3748 188:3882 189:3272 190:8860 191:1307
192:10993 193:8616 194:7000 195:4978 196:2954 197:2375
198:5999 199:6035 200:7496 201:5726 202:10490 203:10033
204:4546 205:3450 206:3764 207:3381 208:4019 209:4652
210:4324 211:2458 212:4056 213:3444 214:1149 215:67
216:6474 217:2668 218:1267 219:571 220:1940 221:979
222:843 223:2154
End of report
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