[menog] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri May 21 18:02:55 UTC 2021
This is an automated weekly mailing describing the state of the Internet
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 http://thyme.rand.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
Routing Table Report 04:00 +10GMT Sat 22 May, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 852994
Prefixes after maximum aggregation (per Origin AS): 321766
Deaggregation factor: 2.65
Unique aggregates announced (without unneeded subnets): 408191
Total ASes present in the Internet Routing Table: 71301
Prefixes per ASN: 11.96
Origin-only ASes present in the Internet Routing Table: 61330
Origin ASes announcing only one prefix: 25315
Transit ASes present in the Internet Routing Table: 9971
Transit-only ASes present in the Internet Routing Table: 310
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 38
Max AS path prepend of ASN ( 37385) 33
Prefixes from unregistered ASNs in the Routing Table: 1167
Number of instances of unregistered ASNs: 1172
Number of 32-bit ASNs allocated by the RIRs: 36084
Number of 32-bit ASNs visible in the Routing Table: 30022
Prefixes from 32-bit ASNs in the Routing Table: 139678
Number of bogon 32-bit ASNs visible in the Routing Table: 22
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 647
Number of addresses announced to Internet: 3039623808
Equivalent to 181 /8s, 44 /16s and 250 /24s
Percentage of available address space announced: 82.1
Percentage of allocated address space announced: 82.1
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: 284362
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 229410
Total APNIC prefixes after maximum aggregation: 65589
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 225463
Unique aggregates announced from the APNIC address blocks: 90076
APNIC Region origin ASes present in the Internet Routing Table: 11607
APNIC Prefixes per ASN: 19.42
APNIC Region origin ASes announcing only one prefix: 3324
APNIC Region transit ASes present in the Internet Routing Table: 1631
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 31
Number of APNIC region 32-bit ASNs visible in the Routing Table: 6761
Number of APNIC addresses announced to Internet: 773922304
Equivalent to 46 /8s, 33 /16s and 30 /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, 131072-147769
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: 247633
Total ARIN prefixes after maximum aggregation: 113176
ARIN Deaggregation factor: 2.19
Prefixes being announced from the ARIN address blocks: 248026
Unique aggregates announced from the ARIN address blocks: 118149
ARIN Region origin ASes present in the Internet Routing Table: 18811
ARIN Prefixes per ASN: 13.19
ARIN Region origin ASes announcing only one prefix: 6809
ARIN Region transit ASes present in the Internet Routing Table: 1943
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 3879
Number of ARIN addresses announced to Internet: 1271316992
Equivalent to 75 /8s, 198 /16s and 194 /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: 237595
Total RIPE prefixes after maximum aggregation: 110779
RIPE Deaggregation factor: 2.14
Prefixes being announced from the RIPE address blocks: 233575
Unique aggregates announced from the RIPE address blocks: 141918
RIPE Region origin ASes present in the Internet Routing Table: 27930
RIPE Prefixes per ASN: 8.36
RIPE Region origin ASes announcing only one prefix: 11985
RIPE Region transit ASes present in the Internet Routing Table: 3890
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10187
Number of RIPE addresses announced to Internet: 710306944
Equivalent to 42 /8s, 86 /16s and 108 /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: 111183
Total LACNIC prefixes after maximum aggregation: 26481
LACNIC Deaggregation factor: 4.20
Prefixes being announced from the LACNIC address blocks: 112298
Unique aggregates announced from the LACNIC address blocks: 47061
LACNIC Region origin ASes present in the Internet Routing Table: 10745
LACNIC Prefixes per ASN: 10.45
LACNIC Region origin ASes announcing only one prefix: 2697
LACNIC Region transit ASes present in the Internet Routing Table: 2030
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8384
Number of LACNIC addresses announced to Internet: 176203520
Equivalent to 10 /8s, 128 /16s and 167 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-272796 + 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: 26005
Total AfriNIC prefixes after maximum aggregation: 4964
AfriNIC Deaggregation factor: 5.24
Prefixes being announced from the AfriNIC address blocks: 32985
Unique aggregates announced from the AfriNIC address blocks: 10484
AfriNIC Region origin ASes present in the Internet Routing Table: 1468
AfriNIC Prefixes per ASN: 22.47
AfriNIC Region origin ASes announcing only one prefix: 500
AfriNIC Region transit ASes present in the Internet Routing Table: 305
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 811
Number of AfriNIC addresses announced to Internet: 107411200
Equivalent to 6 /8s, 102 /16s and 247 /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 7866 8995 52 CMNET-GD Guangdong Mobile Communication
7545 5790 783 669 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4753 4192 74 ERX-CERNET-BKB China Education and Rese
7713 3522 1023 56 TELKOMNET-AS-AP PT Telekomunikasi Indon
7552 3505 1330 20 VIETEL-AS-AP Viettel Group, VN
45899 2808 1896 54 VNPT-AS-VN VNPT Corp, VN
4766 2426 11104 562 KIXS-AS-KR Korea Telecom, KR
9498 2341 482 241 BBIL-AP BHARTI Airtel Ltd., IN
4755 2127 441 192 TATACOMM-AS TATA Communications formerl
45090 2116 1197 71 CNNIC-TENCENT-NET-AP Shenzhen Tencent C
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 5218 9380 2271 AMAZON-02, US
11492 4806 318 586 CABLEONE, US
7155 4027 264 32 VIASAT-SP-BACKBONE, US
22773 3938 3002 247 ASN-CXA-ALL-CCI-22773-RDC, US
16625 3448 1769 2425 AKAMAI-AS, US
6327 3360 1317 68 SHAW, CA
30036 2570 373 127 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2524 5035 480 CENTURYLINK-US-LEGACY-QWEST, US
5972 2242 452 779 DNIC-ASBLK-05800-06055, US
20115 2170 2928 508 CHARTER-20115, US
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
12479 6639 1725 146 UNI2-AS, ES
20940 3604 3347 202 AKAMAI-ASN1, NL
39891 3266 187 22 ALJAWWALSTC-AS, SA
8551 3097 378 40 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2917 2281 892 ROSTELECOM-AS, RU
9009 2427 253 1304 M247, GB
34984 2203 355 591 TELLCOM-AS, TR
13188 1609 100 31 TRIOLAN, UA
58224 1600 886 579 TCI, IR
61317 1548 284 785 ASDETUK http://www.heficed.com, GB
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 8601 3483 571 Uninet S.A. de C.V., MX
10620 3422 526 613 Telmex Colombia S.A., CO
11830 2494 369 62 Instituto Costarricense de Electricidad
13999 1725 434 444 Mega Cable, S.A. de C.V., MX
6503 1450 311 476 Axtel, S.A.B. de C.V., MX
28573 1381 2282 226 CLARO S.A., BR
3816 1233 648 150 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1120 377 38 Telefonica del Peru S.A.A., PE
11664 998 208 419 Techtel LMDS Comunicaciones Interactiva
11172 964 111 69 Alestra, S. de R.L. de C.V., MX
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1591 393 22 LINKdotNET-AS, EG
24835 1452 494 28 RAYA-AS, EG
36992 1196 1473 176 ETISALAT-MISR, EG
36903 1183 537 110 MT-MPLS, MA
29571 731 68 11 ORANGE-COTE-IVOIRE, CI
6713 613 1863 34 IAM-AS, MA
36935 526 522 40 Vodafone-, EG
37342 487 32 1 MOVITEL, MZ
15399 481 48 24 WANANCHI-, KE
23889 439 232 16 MauritiusTelecom, MU
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 8601 3483 571 Uninet S.A. de C.V., MX
9808 7866 8995 52 CMNET-GD Guangdong Mobile Communication
12479 6639 1725 146 UNI2-AS, ES
7545 5790 783 669 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 5218 9380 2271 AMAZON-02, US
11492 4806 318 586 CABLEONE, US
4538 4753 4192 74 ERX-CERNET-BKB China Education and Rese
7155 4027 264 32 VIASAT-SP-BACKBONE, US
22773 3938 3002 247 ASN-CXA-ALL-CCI-22773-RDC, US
20940 3604 3347 202 AKAMAI-ASN1, NL
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 7866 7814 CMNET-GD Guangdong Mobile Communication Co.Ltd.
12479 6639 6493 UNI2-AS, ES
7545 5790 5121 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4753 4679 ERX-CERNET-BKB China Education and Research Net
11492 4806 4220 CABLEONE, US
7155 4027 3995 VIASAT-SP-BACKBONE, US
22773 3938 3691 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3505 3485 VIETEL-AS-AP Viettel Group, VN
7713 3522 3466 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
20940 3604 3402 AKAMAI-ASN1, NL
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
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 8.33.224.0/24 174 COGENT-174, US
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US
23061 UNALLOCATED 8.39.119.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
40544 UNALLOCATED 12.0.33.0/24 6461 ZAYO-6461, US
46505 UNALLOCATED 12.7.131.0/24 7018 ATT-INTERNET4, US
15132 UNALLOCATED 12.9.150.0/24 1239 SPRINTLINK, US
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 6939 HURRICANE, US
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
5.181.53.0/24 Origin: 48402 VIOUSLY, FR
Transit: 8218 NEO-ASN legacy Neotelecoms, FR
23.141.0.0/24 Origin: 395350 UNASSIGNED
Transit: 11426 TWC-11426-CAROLINAS, US
23.142.80.0/24 Origin: 398481 REDMERCURY, US
Transit: 209319 IPV6ROUTING, US
23.162.32.0/24 Origin: 32444 SAFELINK-MV, US
Transit: 6939 HURRICANE, US
27.100.7.0/24 Origin: 56096 UNASSIGNED
Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet
Complete listing at http://thyme.rand.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 /11:102 /12:306
/13:587 /14:1190 /15:1996 /16:13482 /17:8331 /18:13927
/19:25796 /20:42259 /21:50247 /22:106775 /23:91043 /24:495481
/25:1402 /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 5596 6639 UNI2-AS, ES
11492 3835 4806 CABLEONE, US
6327 3167 3360 SHAW, CA
8151 3152 8601 Uninet S.A. de C.V., MX
7155 3115 4027 VIASAT-SP-BACKBONE, US
22773 2967 3938 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2801 3266 ALJAWWALSTC-AS, SA
8551 2562 3097 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2237 2570 MEDIACOM-ENTERPRISE-BUSINESS, US
11830 1917 2494 Instituto Costarricense de Electricidad y Telec
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1890 2:1195 3:128 4:20 5:3563 6:66
7:5 8:1529 9:1 11:164 12:1743 13:364
14:2309 15:75 16:15 17:323 18:107 20:128
21:1 22:188 23:4744 24:2425 25:2 27:2524
29:19 31:2317 32:113 34:16 35:45 36:1561
37:3773 38:2142 39:624 40:159 41:3864 42:939
43:2104 44:253 45:14910 46:3698 47:319 49:1613
50:1784 51:100 52:1278 54:240 55:756 56:7
57:54 58:1708 59:1202 60:919 61:2318 62:2267
63:1969 64:5332 65:2381 66:5020 67:2901 68:1166
69:4062 70:1384 71:681 72:3164 74:2594 75:1488
76:691 77:2002 78:1694 79:2257 80:1873 81:1503
82:1374 83:1132 84:1276 85:2684 86:707 87:1820
88:968 89:3006 90:466 91:7320 92:1770 93:2531
94:3123 95:3518 96:1282 97:345 98:996 99:970
100:94 101:1037 102:1429 103:26087 104:3745 105:434
106:720 107:2275 108:716 109:4018 110:2005 111:3177
112:1981 113:1540 114:1459 115:1911 116:1889 117:2375
118:2345 119:1886 120:1468 121:1064 122:2274 123:2209
124:1591 125:2061 128:1261 129:1261 130:859 131:2032
132:754 133:356 134:1620 135:294 136:742 137:931
138:2314 139:1169 140:732 141:1182 142:1193 143:1294
144:1261 145:329 146:1410 147:1317 148:2196 149:1429
150:812 151:1073 152:1549 153:410 154:2456 155:1328
156:1510 157:1180 158:912 159:2043 160:2316 161:1165
162:3296 163:997 164:1519 165:1393 166:603 167:1771
168:3616 169:686 170:4263 171:770 172:2369 173:2954
174:995 175:1082 176:3153 177:4343 178:2906 179:1931
180:2264 181:2619 182:3205 183:2065 184:2420 185:18239
186:4208 187:3103 188:3293 189:2897 190:8854 191:1419
192:10676 193:8114 194:6613 195:4720 196:2886 197:2393
198:6081 199:6022 200:7411 201:5270 202:10588 203:10109
204:4644 205:3318 206:3527 207:3376 208:4014 209:4691
210:4242 211:2239 212:3688 213:3361 214:1217 215:62
216:6186 217:2518 218:1209 219:707 220:2079 221:981
222:881 223:1884
End of report
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