[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Apr 24 18:03:32 UTC 2020
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 25 Apr, 2020
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 807324
Prefixes after maximum aggregation (per Origin AS): 306952
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 394895
Total ASes present in the Internet Routing Table: 67870
Prefixes per ASN: 11.90
Origin-only ASes present in the Internet Routing Table: 58291
Origin ASes announcing only one prefix: 24322
Transit ASes present in the Internet Routing Table: 9579
Transit-only ASes present in the Internet Routing Table: 301
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 45
Max AS path prepend of ASN ( 27978) 31
Prefixes from unregistered ASNs in the Routing Table: 1121
Number of instances of unregistered ASNs: 1124
Number of 32-bit ASNs allocated by the RIRs: 31403
Number of 32-bit ASNs visible in the Routing Table: 25963
Prefixes from 32-bit ASNs in the Routing Table: 119709
Number of bogon 32-bit ASNs visible in the Routing Table: 21
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 745
Number of addresses announced to Internet: 2856567040
Equivalent to 170 /8s, 67 /16s and 193 /24s
Percentage of available address space announced: 77.2
Percentage of allocated address space announced: 77.2
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: 272367
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 211915
Total APNIC prefixes after maximum aggregation: 62126
APNIC Deaggregation factor: 3.41
Prefixes being announced from the APNIC address blocks: 205110
Unique aggregates announced from the APNIC address blocks: 86548
APNIC Region origin ASes present in the Internet Routing Table: 10538
APNIC Prefixes per ASN: 19.46
APNIC Region origin ASes announcing only one prefix: 2941
APNIC Region transit ASes present in the Internet Routing Table: 1576
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 27
Number of APNIC region 32-bit ASNs visible in the Routing Table: 5605
Number of APNIC addresses announced to Internet: 767134848
Equivalent to 45 /8s, 185 /16s and 140 /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, 131072-141625
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: 236391
Total ARIN prefixes after maximum aggregation: 108750
ARIN Deaggregation factor: 2.17
Prefixes being announced from the ARIN address blocks: 233827
Unique aggregates announced from the ARIN address blocks: 118675
ARIN Region origin ASes present in the Internet Routing Table: 18444
ARIN Prefixes per ASN: 12.68
ARIN Region origin ASes announcing only one prefix: 6722
ARIN Region transit ASes present in the Internet Routing Table: 1918
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: 3208
Number of ARIN addresses announced to Internet: 1080555776
Equivalent to 64 /8s, 103 /16s and 249 /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, 393216-399260
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: 229590
Total RIPE prefixes after maximum aggregation: 106028
RIPE Deaggregation factor: 2.17
Prefixes being announced from the RIPE address blocks: 226295
Unique aggregates announced from the RIPE address blocks: 132635
RIPE Region origin ASes present in the Internet Routing Table: 27046
RIPE Prefixes per ASN: 8.37
RIPE Region origin ASes announcing only one prefix: 11735
RIPE Region transit ASes present in the Internet Routing Table: 3836
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: 9128
Number of RIPE addresses announced to Internet: 724445312
Equivalent to 43 /8s, 46 /16s and 40 /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: 105935
Total LACNIC prefixes after maximum aggregation: 24598
LACNIC Deaggregation factor: 4.31
Prefixes being announced from the LACNIC address blocks: 107257
Unique aggregates announced from the LACNIC address blocks: 46358
LACNIC Region origin ASes present in the Internet Routing Table: 9774
LACNIC Prefixes per ASN: 10.97
LACNIC Region origin ASes announcing only one prefix: 2436
LACNIC Region transit ASes present in the Internet Routing Table: 1839
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 45
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 7344
Number of LACNIC addresses announced to Internet: 174594816
Equivalent to 10 /8s, 104 /16s and 27 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-270748 + 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: 22371
Total AfriNIC prefixes after maximum aggregation: 4717
AfriNIC Deaggregation factor: 4.74
Prefixes being announced from the AfriNIC address blocks: 34090
Unique aggregates announced from the AfriNIC address blocks: 10061
AfriNIC Region origin ASes present in the Internet Routing Table: 1388
AfriNIC Prefixes per ASN: 24.56
AfriNIC Region origin ASes announcing only one prefix: 488
AfriNIC Region transit ASes present in the Internet Routing Table: 269
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 23
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 678
Number of AfriNIC addresses announced to Internet: 109410304
Equivalent to 6 /8s, 133 /16s and 120 /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 5430 684 632 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4751 4192 73 ERX-CERNET-BKB China Education and Rese
7552 3378 1330 22 VIETEL-AS-AP Viettel Group, VN
45899 2806 1763 157 VNPT-AS-VN VNPT Corp, VN
7713 2713 831 505 TELKOMNET-AS-AP PT Telekomunikasi Indon
9808 2552 9043 62 CMNET-GD Guangdong Mobile Communication
4766 2288 11102 561 KIXS-AS-KR Korea Telecom, KR
9498 2263 434 221 BBIL-AP BHARTI Airtel Ltd., IN
4755 2134 441 192 TATACOMM-AS TATA Communications formerl
9394 2040 4914 20 CTTNET China TieTong Telecommunications
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 4263 285 652 CABLEONE, US
7155 4034 280 28 VIASAT-SP-BACKBONE, US
16509 3998 7877 1773 AMAZON-02, US
22773 3533 2968 149 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3364 1324 92 SHAW, CA
16625 3052 1592 2184 AKAMAI-AS, US
209 2420 5077 538 CENTURYLINK-US-LEGACY-QWEST, US
30036 2375 362 94 MEDIACOM-ENTERPRISE-BUSINESS, US
5650 2300 2981 1621 FRONTIER-FRTR, US
26484 2194 137 175 IKGUL-26484, 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 5772 1603 138 UNI2-AS, ES
31334 4759 484 13 KABELDEUTSCHLAND-AS, DE
39891 3651 203 20 ALJAWWALSTC-AS, SA
8551 3202 379 45 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 2969 456 2027 AKAMAI-ASN1, EU
12389 2497 2251 725 ROSTELECOM-AS, RU
9009 2170 229 1177 M247, GB
34984 2056 350 561 TELLCOM-AS, TR
9121 1890 1691 18 TTNET, TR
13188 1606 100 36 TRIOLAN, UA
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 6497 3316 600 Uninet S.A. de C.V., MX
10620 3360 530 517 Telmex Colombia S.A., CO
11830 2671 369 63 Instituto Costarricense de Electricidad
6503 1687 327 387 Axtel, S.A.B. de C.V., MX
7303 1552 1031 262 Telecom Argentina S.A., AR
28573 1371 2242 203 CLARO S.A., BR
13999 1327 490 326 Mega Cable, S.A. de C.V., MX
6147 1141 379 39 Telefonica del Peru S.A.A., PE
3816 1096 570 139 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
11172 956 112 70 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 1467 393 22 LINKdotNET-AS, EG
24835 1109 574 25 RAYA-AS, EG
36992 1087 1539 76 ETISALAT-MISR, EG
36903 890 467 88 MT-MPLS, MA
29571 600 68 12 ORANGE-COTE-IVOIRE, CI
6713 566 1863 34 IAM-AS, MA
36935 410 522 44 Vodafone-, EG
37342 404 32 1 MOVITEL, MZ
23889 368 231 15 MauritiusTelecom, MU
15399 349 45 10 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 6497 3316 600 Uninet S.A. de C.V., MX
12479 5772 1603 138 UNI2-AS, ES
7545 5430 684 632 TPG-INTERNET-AP TPG Telecom Limited, AU
31334 4759 484 13 KABELDEUTSCHLAND-AS, DE
4538 4751 4192 73 ERX-CERNET-BKB China Education and Rese
11492 4263 285 652 CABLEONE, US
7155 4034 280 28 VIASAT-SP-BACKBONE, US
16509 3998 7877 1773 AMAZON-02, US
39891 3651 203 20 ALJAWWALSTC-AS, SA
22773 3533 2968 149 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 5772 5634 UNI2-AS, ES
7545 5430 4798 TPG-INTERNET-AP TPG Telecom Limited, AU
31334 4759 4746 KABELDEUTSCHLAND-AS, DE
4538 4751 4678 ERX-CERNET-BKB China Education and Research Net
7155 4034 4006 VIASAT-SP-BACKBONE, US
39891 3651 3631 ALJAWWALSTC-AS, SA
11492 4263 3611 CABLEONE, US
22773 3533 3384 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3378 3356 VIETEL-AS-AP Viettel Group, VN
6327 3364 3272 SHAW, CA
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
62485 UNALLOCATED 8.23.229.0/24 3356 LEVEL3, US
32985 UNALLOCATED 8.28.31.0/24 3356 LEVEL3, US
394936 UNALLOCATED 8.33.224.0/24 174 COGENT-174, US
14109 UNALLOCATED 8.38.252.0/24 3356 LEVEL3, US
23061 UNALLOCATED 8.39.119.0/24 3356 LEVEL3, US
26584 UNALLOCATED 8.42.62.0/23 209 CENTURYLINK-US-LEGACY-QWEST,
395438 UNALLOCATED 8.42.206.0/24 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
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, MY
27.126.156.0/23 Origin: 55827 UNASSIGNED
Transit: 9930 TTNET-MY TIME dotCom Berhad, MY
27.126.158.0/23 Origin: 55827 UNASSIGNED
Transit: 9930 TTNET-MY TIME dotCom Berhad, MY
41.67.192.0/18 Origin: 15964 CAMNET-AS, CM
Transit: 37662 WIOCC-AS, MU
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 /8:10 /9:11 /10:38 /11:99 /12:286
/13:578 /14:1166 /15:1917 /16:13368 /17:8202 /18:13594
/19:25854 /20:40481 /21:47970 /22:100009 /23:82638 /24:469820
/25:1283 /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 4775 5772 UNI2-AS, ES
31334 4604 4759 KABELDEUTSCHLAND-AS, DE
11492 3341 4263 CABLEONE, US
6327 3152 3364 SHAW, CA
7155 3125 4034 VIASAT-SP-BACKBONE, US
39891 2801 3651 ALJAWWALSTC-AS, SA
22773 2751 3533 ASN-CXA-ALL-CCI-22773-RDC, US
8551 2660 3202 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
8151 2216 6497 Uninet S.A. de C.V., MX
30036 2122 2375 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1586 2:1152 3:30 4:19 5:3346 6:51
8:1406 9:1 11:1 12:1794 13:506 14:2280
15:75 16:9 17:299 18:81 20:83 23:3505
24:2267 25:2 27:2565 31:3067 32:103 34:3
35:41 36:930 37:3299 38:1953 39:389 40:126
41:3598 42:693 43:2114 44:203 45:14112 46:3708
47:286 49:1449 50:1411 51:91 52:1121 54:269
55:673 56:6 57:52 58:1769 59:1176 60:726
61:2249 62:2229 63:1962 64:5090 65:2297 66:4908
67:2848 68:1228 69:3825 70:1429 71:679 72:2882
74:2598 75:1434 76:682 77:2815 78:1870 79:2424
80:1927 81:1623 82:1302 83:1159 84:1204 85:2547
86:552 87:1705 88:1141 89:2738 90:317 91:7908
92:1504 93:2463 94:2673 95:3954 96:1117 97:335
98:938 99:973 100:87 101:974 102:896 103:23584
104:3437 105:378 106:834 107:1991 108:702 109:3669
110:1811 111:1984 112:1601 113:1401 114:1549 115:1822
116:1798 117:2095 118:2163 119:1737 120:820 121:1050
122:2438 123:1994 124:1556 125:2040 128:1347 129:943
130:634 131:1844 132:758 133:300 134:1304 135:295
136:614 137:852 138:2172 139:991 140:642 141:940
142:904 143:1207 144:972 145:330 146:1492 147:1036
148:2128 149:1179 150:816 151:1295 152:1494 153:379
154:4738 155:1044 156:3383 157:1099 158:831 159:1959
160:1940 161:1033 162:3054 163:858 164:1444 165:1284
166:532 167:1625 168:3434 169:526 170:4239 171:773
172:1925 173:2501 174:1012 175:1016 176:2627 177:4217
178:3051 179:1478 180:2320 181:2529 182:3086 183:1132
184:2411 185:16406 186:3792 187:2716 188:4093 189:2260
190:8624 191:1420 192:10347 193:7461 194:6119 195:4377
196:3306 197:1808 198:6100 199:5978 200:7225 201:5224
202:10500 203:10161 204:4521 205:3104 206:3249 207:3292
208:4034 209:4409 210:4016 211:2002 212:3323 213:3127
214:1166 215:61 216:5963 217:2401 218:878 219:612
220:2039 221:896 222:1009 223:1466
End of report
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