[cmNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Ven 15 Jan 18:03:28 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 16 Jan, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 836570
Prefixes after maximum aggregation (per Origin AS): 320991
Deaggregation factor: 2.61
Unique aggregates announced (without unneeded subnets): 400559
Total ASes present in the Internet Routing Table: 70300
Prefixes per ASN: 11.90
Origin-only ASes present in the Internet Routing Table: 60483
Origin ASes announcing only one prefix: 25027
Transit ASes present in the Internet Routing Table: 9817
Transit-only ASes present in the Internet Routing Table: 303
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 34
Max AS path prepend of ASN (135582) 32
Prefixes from unregistered ASNs in the Routing Table: 888
Number of instances of unregistered ASNs: 890
Number of 32-bit ASNs allocated by the RIRs: 34690
Number of 32-bit ASNs visible in the Routing Table: 28828
Prefixes from 32-bit ASNs in the Routing Table: 133357
Number of bogon 32-bit ASNs visible in the Routing Table: 14
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 441
Number of addresses announced to Internet: 2864864896
Equivalent to 170 /8s, 194 /16s and 94 /24s
Percentage of available address space announced: 77.4
Percentage of allocated address space announced: 77.4
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: 284676
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 219462
Total APNIC prefixes after maximum aggregation: 65065
APNIC Deaggregation factor: 3.37
Prefixes being announced from the APNIC address blocks: 215317
Unique aggregates announced from the APNIC address blocks: 88009
APNIC Region origin ASes present in the Internet Routing Table: 11211
APNIC Prefixes per ASN: 19.21
APNIC Region origin ASes announcing only one prefix: 3205
APNIC Region transit ASes present in the Internet Routing Table: 1599
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 34
Number of APNIC region 32-bit ASNs visible in the Routing Table: 6352
Number of APNIC addresses announced to Internet: 778254080
Equivalent to 46 /8s, 99 /16s and 55 /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, 131072-143673
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: 241554
Total ARIN prefixes after maximum aggregation: 111774
ARIN Deaggregation factor: 2.16
Prefixes being announced from the ARIN address blocks: 242098
Unique aggregates announced from the ARIN address blocks: 115757
ARIN Region origin ASes present in the Internet Routing Table: 18692
ARIN Prefixes per ASN: 12.95
ARIN Region origin ASes announcing only one prefix: 6808
ARIN Region transit ASes present in the Internet Routing Table: 1922
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 3670
Number of ARIN addresses announced to Internet: 1094071552
Equivalent to 65 /8s, 54 /16s and 53 /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: 238379
Total RIPE prefixes after maximum aggregation: 112317
RIPE Deaggregation factor: 2.12
Prefixes being announced from the RIPE address blocks: 234319
Unique aggregates announced from the RIPE address blocks: 138091
RIPE Region origin ASes present in the Internet Routing Table: 27639
RIPE Prefixes per ASN: 8.48
RIPE Region origin ASes announcing only one prefix: 11892
RIPE Region transit ASes present in the Internet Routing Table: 3879
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 9831
Number of RIPE addresses announced to Internet: 709928320
Equivalent to 42 /8s, 80 /16s and 165 /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: 111736
Total LACNIC prefixes after maximum aggregation: 26259
LACNIC Deaggregation factor: 4.26
Prefixes being announced from the LACNIC address blocks: 112825
Unique aggregates announced from the LACNIC address blocks: 48039
LACNIC Region origin ASes present in the Internet Routing Table: 10635
LACNIC Prefixes per ASN: 10.61
LACNIC Region origin ASes announcing only one prefix: 2640
LACNIC Region transit ASes present in the Internet Routing Table: 1981
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 33
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8232
Number of LACNIC addresses announced to Internet: 174115328
Equivalent to 10 /8s, 96 /16s and 202 /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: 24549
Total AfriNIC prefixes after maximum aggregation: 4849
AfriNIC Deaggregation factor: 5.06
Prefixes being announced from the AfriNIC address blocks: 31570
Unique aggregates announced from the AfriNIC address blocks: 10266
AfriNIC Region origin ASes present in the Internet Routing Table: 1412
AfriNIC Prefixes per ASN: 22.36
AfriNIC Region origin ASes announcing only one prefix: 481
AfriNIC Region transit ASes present in the Internet Routing Table: 283
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 29
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 743
Number of AfriNIC addresses announced to Internet: 108124416
Equivalent to 6 /8s, 113 /16s and 217 /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
7545 5689 777 661 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4736 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3538 1330 19 VIETEL-AS-AP Viettel Group, VN
7713 3235 952 519 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 2865 1896 55 VNPT-AS-VN VNPT Corp, VN
9808 2779 9044 57 CMNET-GD Guangdong Mobile Communication
4766 2440 11104 567 KIXS-AS-KR Korea Telecom, KR
9498 2303 482 231 BBIL-AP BHARTI Airtel Ltd., IN
4755 2132 441 190 TATACOMM-AS TATA Communications formerl
45090 2076 1045 64 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
11492 4752 315 733 CABLEONE, US
16509 4647 9079 2129 AMAZON-02, US
7155 4037 264 32 VIASAT-SP-BACKBONE, US
22773 3816 3016 227 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3348 1319 82 SHAW, CA
16625 3199 1674 2298 AKAMAI-AS, US
209 2522 5058 508 CENTURYLINK-US-LEGACY-QWEST, US
30036 2497 370 95 MEDIACOM-ENTERPRISE-BUSINESS, US
5650 2353 3000 1641 FRONTIER-FRTR, US
20115 2168 2902 511 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
47331 6288 867 3615 TTNET, TR
12479 6225 1667 141 UNI2-AS, ES
39891 3459 195 22 ALJAWWALSTC-AS, SA
20940 3390 3359 186 AKAMAI-ASN1, NL
8551 3140 379 45 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2875 2280 884 ROSTELECOM-AS, RU
9009 2289 232 1239 M247, GB
34984 2176 354 579 TELLCOM-AS, TR
13188 1611 100 23 TRIOLAN, UA
58224 1497 860 547 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 8129 3400 589 Uninet S.A. de C.V., MX
10620 3388 526 603 Telmex Colombia S.A., CO
11830 2560 369 63 Instituto Costarricense de Electricidad
13999 1611 432 414 Mega Cable, S.A. de C.V., MX
6503 1438 311 475 Axtel, S.A.B. de C.V., MX
7303 1437 910 260 Telecom Argentina S.A., AR
28573 1372 2258 218 CLARO S.A., BR
6147 1148 379 39 Telefonica del Peru S.A.A., PE
3816 1118 539 147 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
11664 997 211 414 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 1586 393 21 LINKdotNET-AS, EG
24835 1274 472 29 RAYA-AS, EG
36992 1186 1533 166 ETISALAT-MISR, EG
36903 979 511 102 MT-MPLS, MA
29571 701 68 11 ORANGE-COTE-IVOIRE, CI
6713 533 1863 34 IAM-AS, MA
37342 486 32 1 MOVITEL, MZ
36935 457 522 40 Vodafone-, EG
23889 454 232 16 MauritiusTelecom, MU
15399 428 46 15 WANANCHI-, KE
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 8129 3400 589 Uninet S.A. de C.V., MX
47331 6288 867 3615 TTNET, TR
12479 6225 1667 141 UNI2-AS, ES
7545 5689 777 661 TPG-INTERNET-AP TPG Telecom Limited, AU
11492 4752 315 733 CABLEONE, US
4538 4736 4192 74 ERX-CERNET-BKB China Education and Rese
16509 4647 9079 2129 AMAZON-02, US
7155 4037 264 32 VIASAT-SP-BACKBONE, US
22773 3816 3016 227 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3538 1330 19 VIETEL-AS-AP Viettel Group, VN
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 6225 6084 UNI2-AS, ES
7545 5689 5028 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4736 4662 ERX-CERNET-BKB China Education and Research Net
11492 4752 4019 CABLEONE, US
7155 4037 4005 VIASAT-SP-BACKBONE, US
22773 3816 3589 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3538 3519 VIETEL-AS-AP Viettel Group, VN
39891 3459 3437 ALJAWWALSTC-AS, SA
6327 3348 3266 SHAW, CA
20940 3390 3204 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 8.23.52.0/24 174 COGENT-174, US
18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US
32985 UNALLOCATED 8.28.31.0/24 3356 LEVEL3, US
394936 UNALLOCATED 8.33.224.0/24 174 COGENT-174, US
393579 UNALLOCATED 8.38.98.0/24 3356 LEVEL3, US
23061 UNALLOCATED 8.39.119.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46766 UNALLOCATED 8.44.208.0/24 3356 LEVEL3, US
40544 UNALLOCATED 12.0.33.0/24 6461 ZAYO-6461, 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
23.133.192.0/24 Origin: 16734 UNASSIGNED
Transit: 266201 RNV CORP EIRELI, BR
23.141.0.0/24 Origin: 395350 UNASSIGNED
Transit: 11426 TWC-11426-CAROLINAS, US
23.142.80.0/24 Origin: 397881 STINGERS, US
Transit: 398481 REDMERCURY, 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
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 /8:8 /9:13 /10:40 /11:101 /12:292
/13:579 /14:1175 /15:1926 /16:13478 /17:8260 /18:13711
/19:25618 /20:41481 /21:50513 /22:103946 /23:88324 /24:485818
/25:1287 /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 5573 6288 TTNET, TR
12479 5203 6225 UNI2-AS, ES
11492 3821 4752 CABLEONE, US
6327 3144 3348 SHAW, CA
7155 3125 4037 VIASAT-SP-BACKBONE, US
22773 2896 3816 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2801 3459 ALJAWWALSTC-AS, SA
8151 2747 8129 Uninet S.A. de C.V., MX
8551 2601 3140 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2227 2497 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1876 2:1189 3:74 4:19 5:3589 6:65
8:1479 9:1 11:1 12:1755 13:348 14:2438
15:75 16:14 17:311 18:93 20:113 23:4213
24:2363 25:3 27:2347 31:2178 32:111 34:2
35:36 36:1144 37:3557 38:2016 39:471 40:150
41:3825 42:882 43:2113 44:229 45:14636 46:3606
47:318 49:1601 50:1707 51:95 52:1134 54:216
55:769 56:6 57:57 58:1691 59:1153 60:817
61:2328 62:2197 63:1990 64:5226 65:2383 66:5120
67:2946 68:1164 69:4100 70:1400 71:687 72:3103
74:2573 75:1469 76:691 77:1996 78:3264 79:2409
80:1918 81:1613 82:1312 83:1116 84:1259 85:3108
86:623 87:1803 88:2406 89:2886 90:396 91:7221
92:1583 93:2553 94:2938 95:4179 96:1234 97:344
98:970 99:979 100:89 101:1052 102:1246 103:25201
104:3644 105:418 106:718 107:2179 108:697 109:3793
110:1988 111:2382 112:1695 113:1619 114:1423 115:1853
116:1879 117:2140 118:2307 119:1846 120:938 121:1064
122:2310 123:2158 124:1644 125:2151 128:1320 129:1243
130:791 131:2013 132:756 133:312 134:1478 135:281
136:702 137:834 138:2301 139:1146 140:734 141:1160
142:1048 143:1229 144:1216 145:334 146:1387 147:1222
148:2140 149:1252 150:759 151:1203 152:1552 153:447
154:2147 155:1216 156:1365 157:1156 158:915 159:2043
160:2042 161:1062 162:3250 163:935 164:1426 165:1303
166:601 167:1747 168:3599 169:640 170:4340 171:758
172:2050 173:2922 174:968 175:1056 176:2939 177:4362
178:2819 179:1846 180:2275 181:2585 182:3181 183:1575
184:2458 185:17676 186:4035 187:2966 188:3274 189:2709
190:9057 191:1372 192:10636 193:7880 194:6460 195:4600
196:3035 197:2280 198:6003 199:5960 200:7281 201:5281
202:10462 203:10075 204:4639 205:3137 206:3393 207:3314
208:3995 209:4631 210:4205 211:2136 212:3617 213:3284
214:1200 215:61 216:6135 217:2488 218:922 219:647
220:2088 221:927 222:986 223:1723
End of report
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