[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri May 7 18:02:53 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 08 May, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 857788
Prefixes after maximum aggregation (per Origin AS): 324705
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 407262
Total ASes present in the Internet Routing Table: 71214
Prefixes per ASN: 12.05
Origin-only ASes present in the Internet Routing Table: 61232
Origin ASes announcing only one prefix: 25265
Transit ASes present in the Internet Routing Table: 9982
Transit-only ASes present in the Internet Routing Table: 323
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 31
Max AS path prepend of ASN (206999) 29
Prefixes from unregistered ASNs in the Routing Table: 1076
Number of instances of unregistered ASNs: 1083
Number of 32-bit ASNs allocated by the RIRs: 35977
Number of 32-bit ASNs visible in the Routing Table: 29920
Prefixes from 32-bit ASNs in the Routing Table: 139163
Number of bogon 32-bit ASNs visible in the Routing Table: 24
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 567
Number of addresses announced to Internet: 3030129536
Equivalent to 180 /8s, 156 /16s and 27 /24s
Percentage of available address space announced: 81.8
Percentage of allocated address space announced: 81.8
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: 290936
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 226816
Total APNIC prefixes after maximum aggregation: 65462
APNIC Deaggregation factor: 3.46
Prefixes being announced from the APNIC address blocks: 222971
Unique aggregates announced from the APNIC address blocks: 89686
APNIC Region origin ASes present in the Internet Routing Table: 11571
APNIC Prefixes per ASN: 19.27
APNIC Region origin ASes announcing only one prefix: 3319
APNIC Region transit ASes present in the Internet Routing Table: 1639
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: 6727
Number of APNIC addresses announced to Internet: 772779264
Equivalent to 46 /8s, 15 /16s and 173 /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: 247094
Total ARIN prefixes after maximum aggregation: 113150
ARIN Deaggregation factor: 2.18
Prefixes being announced from the ARIN address blocks: 247473
Unique aggregates announced from the ARIN address blocks: 118039
ARIN Region origin ASes present in the Internet Routing Table: 18804
ARIN Prefixes per ASN: 13.16
ARIN Region origin ASes announcing only one prefix: 6805
ARIN Region transit ASes present in the Internet Routing Table: 1941
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 3858
Number of ARIN addresses announced to Internet: 1263454208
Equivalent to 75 /8s, 78 /16s and 200 /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: 244357
Total RIPE prefixes after maximum aggregation: 114021
RIPE Deaggregation factor: 2.14
Prefixes being announced from the RIPE address blocks: 240348
Unique aggregates announced from the RIPE address blocks: 141608
RIPE Region origin ASes present in the Internet Routing Table: 27896
RIPE Prefixes per ASN: 8.62
RIPE Region origin ASes announcing only one prefix: 11961
RIPE Region transit ASes present in the Internet Routing Table: 3892
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: 10157
Number of RIPE addresses announced to Internet: 710176128
Equivalent to 42 /8s, 84 /16s and 109 /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: 112598
Total LACNIC prefixes after maximum aggregation: 26389
LACNIC Deaggregation factor: 4.27
Prefixes being announced from the LACNIC address blocks: 113721
Unique aggregates announced from the LACNIC address blocks: 46926
LACNIC Region origin ASes present in the Internet Routing Table: 10746
LACNIC Prefixes per ASN: 10.58
LACNIC Region origin ASes announcing only one prefix: 2685
LACNIC Region transit ASes present in the Internet Routing Table: 2032
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8375
Number of LACNIC addresses announced to Internet: 176254208
Equivalent to 10 /8s, 129 /16s and 109 /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: 25846
Total AfriNIC prefixes after maximum aggregation: 4926
AfriNIC Deaggregation factor: 5.25
Prefixes being announced from the AfriNIC address blocks: 32708
Unique aggregates announced from the AfriNIC address blocks: 10493
AfriNIC Region origin ASes present in the Internet Routing Table: 1454
AfriNIC Prefixes per ASN: 22.50
AfriNIC Region origin ASes announcing only one prefix: 495
AfriNIC Region transit ASes present in the Internet Routing Table: 302
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 28
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 803
Number of AfriNIC addresses announced to Internet: 107021568
Equivalent to 6 /8s, 97 /16s and 5 /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 6324 8996 55 CMNET-GD Guangdong Mobile Communication
7545 5761 782 671 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4762 4192 74 ERX-CERNET-BKB China Education and Rese
7713 3520 1023 56 TELKOMNET-AS-AP PT Telekomunikasi Indon
7552 3498 1330 20 VIETEL-AS-AP Viettel Group, VN
45899 2804 1896 54 VNPT-AS-VN VNPT Corp, VN
4766 2428 11104 562 KIXS-AS-KR Korea Telecom, KR
9498 2339 481 237 BBIL-AP BHARTI Airtel Ltd., IN
4755 2124 441 192 TATACOMM-AS TATA Communications formerl
45090 2097 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 5077 9369 2238 AMAZON-02, US
11492 4773 316 611 CABLEONE, US
7155 4027 264 32 VIASAT-SP-BACKBONE, US
22773 3930 2998 245 ASN-CXA-ALL-CCI-22773-RDC, US
16625 3453 1776 2428 AKAMAI-AS, US
6327 3358 1317 68 SHAW, CA
30036 2557 372 159 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2535 5037 485 CENTURYLINK-US-LEGACY-QWEST, US
5650 2251 2986 1570 FRONTIER-FRTR, US
5972 2231 451 777 DNIC-ASBLK-05800-06055, 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
47331 7782 1044 3503 TTNET, TR
12479 6576 1725 146 UNI2-AS, ES
20940 3600 3347 204 AKAMAI-ASN1, NL
39891 3266 187 22 ALJAWWALSTC-AS, SA
8551 3091 378 40 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2905 2281 890 ROSTELECOM-AS, RU
9009 2420 247 1297 M247, GB
34984 2218 357 588 TELLCOM-AS, TR
13188 1610 100 31 TRIOLAN, UA
58224 1591 886 579 TCI, IR
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 8557 3476 579 Uninet S.A. de C.V., MX
10620 3419 526 617 Telmex Colombia S.A., CO
11830 2492 369 62 Instituto Costarricense de Electricidad
7303 1690 2058 68 Telecom Argentina S.A., AR
13999 1684 432 441 Mega Cable, S.A. de C.V., MX
6503 1444 311 476 Axtel, S.A.B. de C.V., MX
28573 1393 2280 224 CLARO S.A., BR
3816 1233 648 150 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1128 377 38 Telefonica del Peru S.A.A., PE
11664 1003 210 401 Techtel LMDS Comunicaciones Interactiva
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 1590 393 22 LINKdotNET-AS, EG
24835 1445 494 28 RAYA-AS, EG
36992 1195 1473 176 ETISALAT-MISR, EG
36903 1183 537 110 MT-MPLS, MA
29571 731 68 11 ORANGE-COTE-IVOIRE, CI
6713 593 1863 34 IAM-AS, MA
36935 516 522 40 Vodafone-, EG
37342 487 32 1 MOVITEL, MZ
15399 483 48 22 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 8557 3476 579 Uninet S.A. de C.V., MX
47331 7782 1044 3503 TTNET, TR
12479 6576 1725 146 UNI2-AS, ES
9808 6324 8996 55 CMNET-GD Guangdong Mobile Communication
7545 5761 782 671 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 5077 9369 2238 AMAZON-02, US
11492 4773 316 611 CABLEONE, US
4538 4762 4192 74 ERX-CERNET-BKB China Education and Rese
7155 4027 264 32 VIASAT-SP-BACKBONE, US
22773 3930 2998 245 ASN-CXA-ALL-CCI-22773-RDC, US
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
12479 6576 6430 UNI2-AS, ES
9808 6324 6269 CMNET-GD Guangdong Mobile Communication Co.Ltd.
7545 5761 5090 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4762 4688 ERX-CERNET-BKB China Education and Research Net
47331 7782 4279 TTNET, TR
11492 4773 4162 CABLEONE, US
7155 4027 3995 VIASAT-SP-BACKBONE, US
22773 3930 3685 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3498 3478 VIETEL-AS-AP Viettel Group, VN
7713 3520 3464 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
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
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
3577 UNALLOCATED 12.19.197.0/24 209 CENTURYLINK-US-LEGACY-QWEST,
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
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
27.100.7.0/24 Origin: 56096 UNASSIGNED
Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet
27.126.156.0/22 Origin: 55827 UNASSIGNED
Transit: 9930 TTNET-MY TIME dotCom Berhad No. 14, Jala
27.126.156.0/23 Origin: 55827 UNASSIGNED
Transit: 9930 TTNET-MY TIME dotCom Berhad No. 14, Jala
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 /11:103 /12:297
/13:587 /14:1192 /15:2001 /16:13498 /17:8339 /18:13892
/19:25788 /20:42463 /21:51348 /22:106915 /23:91408 /24:498478
/25:1409 /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
47331 6963 7782 TTNET, TR
12479 5527 6576 UNI2-AS, ES
11492 3818 4773 CABLEONE, US
6327 3167 3358 SHAW, CA
8151 3120 8557 Uninet S.A. de C.V., MX
7155 3115 4027 VIASAT-SP-BACKBONE, US
22773 2968 3930 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2801 3266 ALJAWWALSTC-AS, SA
8551 2556 3091 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2228 2557 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1884 2:1195 3:122 4:19 5:3531 6:65
7:5 8:1522 9:1 11:164 12:1753 13:361
14:2291 15:75 16:15 17:325 18:93 20:128
21:1 22:188 23:4709 24:2403 25:2 27:2523
29:19 31:2322 32:111 34:2 35:40 36:1323
37:3770 38:2082 39:611 40:160 41:3822 42:928
43:2115 44:248 45:14912 46:3701 47:320 49:1609
50:1777 51:100 52:1239 54:224 55:771 56:8
57:57 58:1716 59:1201 60:904 61:2339 62:2251
63:1959 64:5331 65:2384 66:5119 67:2894 68:1152
69:4087 70:1386 71:688 72:3178 74:2587 75:1486
76:687 77:2020 78:3705 79:2230 80:1862 81:1630
82:1362 83:1125 84:1277 85:3408 86:711 87:1796
88:2699 89:2986 90:453 91:7320 92:1751 93:2516
94:3115 95:4433 96:1280 97:347 98:993 99:970
100:92 101:1042 102:1408 103:26034 104:3745 105:435
106:726 107:2266 108:719 109:4028 110:2015 111:2960
112:1962 113:1539 114:1457 115:1905 116:1893 117:2312
118:2340 119:1882 120:1124 121:1065 122:2273 123:2218
124:1570 125:2072 128:1225 129:1228 130:854 131:2026
132:757 133:360 134:1607 135:290 136:682 137:928
138:2295 139:1166 140:734 141:1191 142:1164 143:1290
144:1264 145:329 146:1416 147:1308 148:2210 149:1407
150:811 151:1070 152:1557 153:395 154:2419 155:1335
156:1495 157:1176 158:914 159:2039 160:2120 161:1160
162:3293 163:989 164:1517 165:1383 166:595 167:1766
168:3579 169:683 170:4272 171:768 172:2171 173:2947
174:993 175:1077 176:3141 177:4293 178:2892 179:1924
180:2269 181:2610 182:3209 183:1843 184:2424 185:18202
186:4179 187:3166 188:3281 189:2874 190:8849 191:1399
192:10693 193:8064 194:6595 195:4734 196:2883 197:2378
198:6064 199:6031 200:7395 201:5336 202:10568 203:10112
204:4655 205:3344 206:3546 207:3388 208:4027 209:4698
210:4266 211:2198 212:3677 213:3328 214:1222 215:61
216:6188 217:2507 218:1163 219:708 220:2086 221:961
222:880 223:1846
End of report
More information about the sanog
mailing list