[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Dec 20 18:03:43 UTC 2019
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 21 Dec, 2019
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 788605
Prefixes after maximum aggregation (per Origin AS): 300793
Deaggregation factor: 2.62
Unique aggregates announced (without unneeded subnets): 386434
Total ASes present in the Internet Routing Table: 66571
Prefixes per ASN: 11.85
Origin-only ASes present in the Internet Routing Table: 57215
Origin ASes announcing only one prefix: 24175
Transit ASes present in the Internet Routing Table: 9356
Transit-only ASes present in the Internet Routing Table: 289
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 41
Max AS path prepend of ASN ( 8697) 28
Prefixes from unregistered ASNs in the Routing Table: 1311
Number of instances of unregistered ASNs: 1313
Number of 32-bit ASNs allocated by the RIRs: 29921
Number of 32-bit ASNs visible in the Routing Table: 24634
Prefixes from 32-bit ASNs in the Routing Table: 112572
Number of bogon 32-bit ASNs visible in the Routing Table: 29
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 285
Number of addresses announced to Internet: 2845478784
Equivalent to 169 /8s, 154 /16s and 143 /24s
Percentage of available address space announced: 76.9
Percentage of allocated address space announced: 76.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.4
Total number of prefixes smaller than registry allocations: 263835
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 209493
Total APNIC prefixes after maximum aggregation: 61025
APNIC Deaggregation factor: 3.43
Prefixes being announced from the APNIC address blocks: 203626
Unique aggregates announced from the APNIC address blocks: 84593
APNIC Region origin ASes present in the Internet Routing Table: 10259
APNIC Prefixes per ASN: 19.85
APNIC Region origin ASes announcing only one prefix: 2864
APNIC Region transit ASes present in the Internet Routing Table: 1532
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 5304
Number of APNIC addresses announced to Internet: 767196672
Equivalent to 45 /8s, 186 /16s and 126 /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: 231277
Total ARIN prefixes after maximum aggregation: 107122
ARIN Deaggregation factor: 2.16
Prefixes being announced from the ARIN address blocks: 229192
Unique aggregates announced from the ARIN address blocks: 116042
ARIN Region origin ASes present in the Internet Routing Table: 18342
ARIN Prefixes per ASN: 12.50
ARIN Region origin ASes announcing only one prefix: 6764
ARIN Region transit ASes present in the Internet Routing Table: 1916
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 3077
Number of ARIN addresses announced to Internet: 1073924096
Equivalent to 64 /8s, 2 /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, 393216-399260
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: 222832
Total RIPE prefixes after maximum aggregation: 103895
RIPE Deaggregation factor: 2.14
Prefixes being announced from the RIPE address blocks: 219254
Unique aggregates announced from the RIPE address blocks: 129971
RIPE Region origin ASes present in the Internet Routing Table: 26713
RIPE Prefixes per ASN: 8.21
RIPE Region origin ASes announcing only one prefix: 11698
RIPE Region transit ASes present in the Internet Routing Table: 3760
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 34
Number of RIPE region 32-bit ASNs visible in the Routing Table: 8796
Number of RIPE addresses announced to Internet: 723838080
Equivalent to 43 /8s, 36 /16s and 228 /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
196608-210331
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: 102320
Total LACNIC prefixes after maximum aggregation: 23577
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 103490
Unique aggregates announced from the LACNIC address blocks: 45126
LACNIC Region origin ASes present in the Internet Routing Table: 9241
LACNIC Prefixes per ASN: 11.20
LACNIC Region origin ASes announcing only one prefix: 2368
LACNIC Region transit ASes present in the Internet Routing Table: 1743
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 41
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 6811
Number of LACNIC addresses announced to Internet: 173949184
Equivalent to 10 /8s, 94 /16s and 65 /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: 21371
Total AfriNIC prefixes after maximum aggregation: 4396
AfriNIC Deaggregation factor: 4.86
Prefixes being announced from the AfriNIC address blocks: 32758
Unique aggregates announced from the AfriNIC address blocks: 10465
AfriNIC Region origin ASes present in the Internet Routing Table: 1351
AfriNIC Prefixes per ASN: 24.25
AfriNIC Region origin ASes announcing only one prefix: 481
AfriNIC Region transit ASes present in the Internet Routing Table: 272
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 23
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 646
Number of AfriNIC addresses announced to Internet: 106280704
Equivalent to 6 /8s, 85 /16s and 183 /24s
AfriNIC AS Blocks 36864-37887, 327680-328703 & 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 5171 636 600 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4690 4192 73 ERX-CERNET-BKB China Education and Rese
7552 3279 1331 25 VIETEL-AS-AP Viettel Group, VN
45899 3117 1781 106 VNPT-AS-VN VNPT Corp, VN
7713 2699 798 490 TELKOMNET-AS-AP PT Telekomunikasi Indon
9808 2610 9043 62 CMNET-GD Guangdong Mobile Communication
4766 2290 11105 581 KIXS-AS-KR Korea Telecom, KR
9498 2216 433 214 BBIL-AP BHARTI Airtel Ltd., IN
9829 2212 1390 290 BSNL-NIB National Internet Backbone, IN
4755 2149 442 195 TATACOMM-AS TATA Communications formerl
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
7155 4047 280 27 VIASAT-SP-BACKBONE - ViaSat,Inc., US
11492 3847 253 644 CABLEONE - CABLE ONE, INC., US
16509 3808 7704 1678 AMAZON-02 - Amazon.com, Inc., US
22773 3504 2971 152 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
6327 3377 1324 93 SHAW - Shaw Communications Inc., CA
16625 2958 1549 2124 AKAMAI-AS - Akamai Technologies, Inc.,
30036 2261 353 157 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
209 2166 5075 534 CENTURYLINK-US-LEGACY-QWEST - CenturyLi
20115 2134 2773 518 CHARTER-20115 - Charter Communications,
18566 2063 405 103 MEGAPATH5-US - MegaPath Corporation, 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 5830 1631 135 UNI2-AS, ES
39891 4034 219 19 ALJAWWALSTC-AS, SA
31334 3361 484 13 KABELDEUTSCHLAND-AS, DE
8551 3082 379 46 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 2812 472 1964 AKAMAI-ASN1, US
12389 2421 2237 701 ROSTELECOM-AS, RU
34984 2136 348 554 TELLCOM-AS, TR
9009 2020 218 1094 M247, GB
9121 1950 1691 18 TTNET, TR
13188 1605 100 46 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 6175 3299 613 Uninet S.A. de C.V., MX
10620 3362 533 462 Telmex Colombia S.A., CO
11830 2681 369 63 Instituto Costarricense de Electricidad
6503 1681 323 388 Axtel, S.A.B. de C.V., MX
7303 1478 1026 265 Telecom Argentina S.A., AR
28573 1226 2234 205 CLARO S.A., BR
13999 1140 495 273 Mega Cable, S.A. de C.V., MX
3816 1119 561 133 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1095 379 39 Telefonica del Peru S.A.A., PE
11172 944 111 65 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 1244 393 23 LINKdotNET-AS, EG
36992 1032 1535 73 ETISALAT-MISR, EG
24835 979 570 24 RAYA-AS, EG
36903 876 452 97 MT-MPLS, MA
6713 623 1863 34 IAM-AS, MA
29571 557 68 11 ORANGE-COTE-IVOIRE, CI
37342 483 32 1 MOVITEL, MZ
15399 359 45 10 WANANCHI-, KE
36935 358 522 41 Vodafone-, EG
23889 354 231 15 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 6175 3299 613 Uninet S.A. de C.V., MX
12479 5830 1631 135 UNI2-AS, ES
7545 5171 636 600 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4690 4192 73 ERX-CERNET-BKB China Education and Rese
7155 4047 280 27 VIASAT-SP-BACKBONE - ViaSat,Inc., US
39891 4034 219 19 ALJAWWALSTC-AS, SA
11492 3847 253 644 CABLEONE - CABLE ONE, INC., US
16509 3808 7704 1678 AMAZON-02 - Amazon.com, Inc., US
22773 3504 2971 152 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
6327 3377 1324 93 SHAW - Shaw Communications Inc., CA
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 5830 5695 UNI2-AS, ES
4538 4690 4617 ERX-CERNET-BKB China Education and Research Net
7545 5171 4571 TPG-INTERNET-AP TPG Telecom Limited, AU
7155 4047 4020 VIASAT-SP-BACKBONE - ViaSat,Inc., US
39891 4034 4015 ALJAWWALSTC-AS, SA
22773 3504 3352 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
31334 3361 3348 KABELDEUTSCHLAND-AS, DE
6327 3377 3284 SHAW - Shaw Communications Inc., CA
7552 3279 3254 VIETEL-AS-AP Viettel Group, VN
11492 3847 3203 CABLEONE - CABLE ONE, INC., US
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 - Level 3 Parent, LLC
393266 UNALLOCATED 8.23.52.0/24 174 COGENT-174 - Cogent Communic
62485 UNALLOCATED 8.23.229.0/24 3356 LEVEL3 - Level 3 Parent, LLC
32985 UNALLOCATED 8.28.31.0/24 3356 LEVEL3 - Level 3 Parent, LLC
394936 UNALLOCATED 8.33.224.0/24 174 COGENT-174 - Cogent Communic
23071 UNALLOCATED 8.33.235.0/24 3356 LEVEL3 - Level 3 Parent, LLC
27205 UNALLOCATED 8.38.16.0/21 6461 ZAYO-6461 - Zayo Bandwidth,
27205 UNALLOCATED 8.38.16.0/22 32787 PROLEXIC-TECHNOLOGIES-DDOS-M
27205 UNALLOCATED 8.38.20.0/22 32787 PROLEXIC-TECHNOLOGIES-DDOS-M
14109 UNALLOCATED 8.38.252.0/24 3356 LEVEL3 - Level 3 Parent, LLC
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 - Hurricane Electric LLC, US
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Originated Origin AS Transit AS Origin AS Name
23.136.224.0/24 15206 174 6X7 - 6x7 Networks LLC, ZZ
27.100.7.0/24 56096 45455 UNKNOWN
27.126.156.0/22 55827 9930 UNKNOWN
27.126.156.0/23 55827 9930 UNKNOWN
27.126.158.0/23 55827 9930 UNKNOWN
41.67.192.0/18 15964 12956 CAMNET-AS, CM
41.67.192.0/24 15964 12956 CAMNET-AS, CM
41.67.200.0/24 15964 12956 CAMNET-AS, CM
41.67.201.0/24 15964 12956 CAMNET-AS, CM
41.67.202.0/24 15964 12956 CAMNET-AS, CM
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 /10:37 /11:98 /12:287
/13:579 /14:1158 /15:1920 /16:13351 /17:8103 /18:13863
/19:25755 /20:40354 /21:47495 /22:98178 /23:80351 /24:455733
/25:1322 /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 4789 5830 UNI2-AS, ES
31334 3206 3361 KABELDEUTSCHLAND-AS, DE
6327 3165 3377 SHAW - Shaw Communications Inc., CA
7155 3139 4047 VIASAT-SP-BACKBONE - ViaSat,Inc., US
11492 3000 3847 CABLEONE - CABLE ONE, INC., US
39891 2946 4034 ALJAWWALSTC-AS, SA
22773 2727 3504 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
8551 2541 3082 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
11830 2029 2681 Instituto Costarricense de Electricidad y Telec
30036 2010 2261 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1513 2:1147 3:12 4:19 5:3167 6:47
8:1363 9:1 12:1793 13:496 14:2187 15:54
16:9 17:280 18:79 20:58 23:3152 24:2611
25:4 27:2509 31:2811 32:101 35:46 36:926
37:3216 38:1804 39:304 40:133 41:3294 42:843
43:2109 44:186 45:12580 46:3242 47:260 49:1427
50:1134 51:344 52:1131 54:276 55:687 56:6
57:47 58:1896 59:1118 60:663 61:2212 62:2129
63:1921 64:5005 65:2298 66:4806 67:2809 68:1219
69:3810 70:1392 71:671 72:2755 74:2691 75:1435
76:666 77:2536 78:1969 79:2325 80:1799 81:1535
82:1191 83:981 84:1195 85:2544 86:580 87:1648
88:1063 89:2655 90:267 91:7462 92:1447 93:2440
94:2602 95:3693 96:1002 97:339 98:959 99:963
100:84 101:1093 102:717 103:22818 104:3618 105:369
106:841 107:1855 108:689 109:3642 110:1772 111:1932
112:1549 113:1380 114:1451 115:1838 116:1803 117:1994
118:2106 119:1672 120:895 121:1037 122:2361 123:1861
124:1543 125:2016 128:1383 129:883 130:581 131:1829
132:776 133:298 134:1277 135:272 136:598 137:857
138:2169 139:985 140:603 141:853 142:817 143:1090
144:932 145:290 146:1458 147:1009 148:1892 149:1041
150:806 151:1280 152:1455 153:368 154:4629 155:887
156:3064 157:1063 158:695 159:1942 160:1672 161:1055
162:3029 163:872 164:1296 165:1214 166:536 167:1452
168:3567 169:492 170:4196 171:716 172:1851 173:2327
174:1038 175:994 176:2718 177:4126 178:2840 179:1431
180:2176 181:2373 182:2819 183:1114 184:2392 185:15853
186:3844 187:2554 188:3478 189:2072 190:8294 191:1463
192:10179 193:7292 194:5881 195:4256 196:3370 197:1953
198:6059 199:5921 200:7148 201:5154 202:10420 203:10240
204:4566 205:3070 206:3257 207:3235 208:3998 209:4336
210:3993 211:1984 212:3317 213:2990 214:1137 215:52
216:5890 217:2310 218:890 219:603 220:1967 221:925
222:1010 223:1359
End of report
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