[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Apr 9 18:02:40 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 10 Apr, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 855145
Prefixes after maximum aggregation (per Origin AS): 324141
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 406808
Total ASes present in the Internet Routing Table: 71034
Prefixes per ASN: 12.04
Origin-only ASes present in the Internet Routing Table: 61106
Origin ASes announcing only one prefix: 25216
Transit ASes present in the Internet Routing Table: 9928
Transit-only ASes present in the Internet Routing Table: 307
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: 1015
Number of instances of unregistered ASNs: 1021
Number of 32-bit ASNs allocated by the RIRs: 35637
Number of 32-bit ASNs visible in the Routing Table: 29671
Prefixes from 32-bit ASNs in the Routing Table: 138154
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: 530
Number of addresses announced to Internet: 2955025792
Equivalent to 176 /8s, 34 /16s and 29 /24s
Percentage of available address space announced: 79.8
Percentage of allocated address space announced: 79.8
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: 290123
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 226451
Total APNIC prefixes after maximum aggregation: 65430
APNIC Deaggregation factor: 3.46
Prefixes being announced from the APNIC address blocks: 222562
Unique aggregates announced from the APNIC address blocks: 89330
APNIC Region origin ASes present in the Internet Routing Table: 11459
APNIC Prefixes per ASN: 19.42
APNIC Region origin ASes announcing only one prefix: 3264
APNIC Region transit ASes present in the Internet Routing Table: 1624
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 30
Number of APNIC region 32-bit ASNs visible in the Routing Table: 6613
Number of APNIC addresses announced to Internet: 772040448
Equivalent to 46 /8s, 4 /16s and 103 /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: 245433
Total ARIN prefixes after maximum aggregation: 112906
ARIN Deaggregation factor: 2.17
Prefixes being announced from the ARIN address blocks: 245868
Unique aggregates announced from the ARIN address blocks: 117633
ARIN Region origin ASes present in the Internet Routing Table: 18781
ARIN Prefixes per ASN: 13.09
ARIN Region origin ASes announcing only one prefix: 6810
ARIN Region transit ASes present in the Internet Routing Table: 1947
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: 3816
Number of ARIN addresses announced to Internet: 1189315840
Equivalent to 70 /8s, 227 /16s and 133 /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: 243686
Total RIPE prefixes after maximum aggregation: 113656
RIPE Deaggregation factor: 2.14
Prefixes being announced from the RIPE address blocks: 239659
Unique aggregates announced from the RIPE address blocks: 141179
RIPE Region origin ASes present in the Internet Routing Table: 27870
RIPE Prefixes per ASN: 8.60
RIPE Region origin ASes announcing only one prefix: 11972
RIPE Region transit ASes present in the Internet Routing Table: 3881
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 38
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10094
Number of RIPE addresses announced to Internet: 710577792
Equivalent to 42 /8s, 90 /16s and 142 /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: 112832
Total LACNIC prefixes after maximum aggregation: 26497
LACNIC Deaggregation factor: 4.26
Prefixes being announced from the LACNIC address blocks: 113977
Unique aggregates announced from the LACNIC address blocks: 48238
LACNIC Region origin ASes present in the Internet Routing Table: 10748
LACNIC Prefixes per ASN: 10.60
LACNIC Region origin ASes announcing only one prefix: 2673
LACNIC Region transit ASes present in the Internet Routing Table: 2015
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: 8356
Number of LACNIC addresses announced to Internet: 174957312
Equivalent to 10 /8s, 109 /16s and 163 /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: 25727
Total AfriNIC prefixes after maximum aggregation: 4898
AfriNIC Deaggregation factor: 5.25
Prefixes being announced from the AfriNIC address blocks: 32549
Unique aggregates announced from the AfriNIC address blocks: 9949
AfriNIC Region origin ASes present in the Internet Routing Table: 1450
AfriNIC Prefixes per ASN: 22.45
AfriNIC Region origin ASes announcing only one prefix: 497
AfriNIC Region transit ASes present in the Internet Routing Table: 294
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: 792
Number of AfriNIC addresses announced to Internet: 107705088
Equivalent to 6 /8s, 107 /16s and 115 /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 6279 8996 55 CMNET-GD Guangdong Mobile Communication
7545 5719 783 675 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4752 4192 74 ERX-CERNET-BKB China Education and Rese
7713 3524 1022 55 TELKOMNET-AS-AP PT Telekomunikasi Indon
7552 3489 1330 21 VIETEL-AS-AP Viettel Group, VN
45899 2912 1896 54 VNPT-AS-VN VNPT Corp, VN
4766 2435 11104 565 KIXS-AS-KR Korea Telecom, KR
9498 2321 482 232 BBIL-AP BHARTI Airtel Ltd., IN
4755 2120 441 190 TATACOMM-AS TATA Communications formerl
45090 2098 1197 72 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 4960 9264 2226 AMAZON-02, US
11492 4753 315 712 CABLEONE, US
7155 4030 264 32 VIASAT-SP-BACKBONE, US
22773 3914 2998 246 ASN-CXA-ALL-CCI-22773-RDC, US
16625 3362 1744 2403 AKAMAI-AS, US
6327 3358 1317 70 SHAW, CA
30036 2533 370 206 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2527 5053 485 CENTURYLINK-US-LEGACY-QWEST, US
5650 2335 2996 1636 FRONTIER-FRTR, US
5972 2222 448 787 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 7756 1043 3490 TTNET, TR
12479 6393 1700 139 UNI2-AS, ES
20940 3575 3347 201 AKAMAI-ASN1, NL
8551 3280 379 41 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
39891 3266 187 22 ALJAWWALSTC-AS, SA
12389 2902 2284 899 ROSTELECOM-AS, RU
9009 2378 246 1278 M247, GB
34984 2215 357 587 TELLCOM-AS, TR
13188 1610 100 31 TRIOLAN, UA
58224 1569 881 576 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 8484 3472 569 Uninet S.A. de C.V., MX
10620 3409 527 603 Telmex Colombia S.A., CO
11830 2552 369 63 Instituto Costarricense de Electricidad
7303 1862 1725 295 Telecom Argentina S.A., AR
13999 1659 447 428 Mega Cable, S.A. de C.V., MX
6503 1443 311 475 Axtel, S.A.B. de C.V., MX
28573 1366 2271 223 CLARO S.A., BR
3816 1223 638 157 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1128 377 39 Telefonica del Peru S.A.A., PE
11664 1004 212 402 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 1542 393 22 LINKdotNET-AS, EG
24835 1443 486 27 RAYA-AS, EG
36992 1195 1537 174 ETISALAT-MISR, EG
36903 1189 530 107 MT-MPLS, MA
29571 711 68 11 ORANGE-COTE-IVOIRE, CI
6713 546 1863 34 IAM-AS, MA
36935 514 522 40 Vodafone-, EG
37342 487 32 1 MOVITEL, MZ
15399 477 47 17 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 8484 3472 569 Uninet S.A. de C.V., MX
47331 7756 1043 3490 TTNET, TR
12479 6393 1700 139 UNI2-AS, ES
9808 6279 8996 55 CMNET-GD Guangdong Mobile Communication
7545 5719 783 675 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 4960 9264 2226 AMAZON-02, US
11492 4753 315 712 CABLEONE, US
4538 4752 4192 74 ERX-CERNET-BKB China Education and Rese
7155 4030 264 32 VIASAT-SP-BACKBONE, US
22773 3914 2998 246 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 6393 6254 UNI2-AS, ES
9808 6279 6224 CMNET-GD Guangdong Mobile Communication Co.Ltd.
7545 5719 5044 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4752 4678 ERX-CERNET-BKB China Education and Research Net
47331 7756 4266 TTNET, TR
11492 4753 4041 CABLEONE, US
7155 4030 3998 VIASAT-SP-BACKBONE, US
22773 3914 3668 ASN-CXA-ALL-CCI-22773-RDC, US
7713 3524 3469 TELKOMNET-AS-AP PT Telekomunikasi Indonesia, ID
7552 3489 3468 VIETEL-AS-AP Viettel Group, VN
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
46766 UNALLOCATED 8.44.208.0/24 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
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
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 /8:13 /9:12 /10:40 /11:102 /12:293
/13:584 /14:1187 /15:1945 /16:13528 /17:8326 /18:13861
/19:25845 /20:42465 /21:51406 /22:106450 /23:90910 /24:496778
/25:1400 /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 6933 7756 TTNET, TR
12479 5350 6393 UNI2-AS, ES
11492 3807 4753 CABLEONE, US
6327 3165 3358 SHAW, CA
7155 3118 4030 VIASAT-SP-BACKBONE, US
8151 3057 8484 Uninet S.A. de C.V., MX
22773 2955 3914 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2801 3266 ALJAWWALSTC-AS, SA
8551 2744 3280 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2218 2533 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1879 2:1111 3:105 4:19 5:3556 6:63
7:5 8:1506 9:1 11:36 12:1748 13:360
14:2302 15:73 16:15 17:317 18:93 20:128
22:188 23:4622 24:2400 25:2 27:2497 29:19
31:2309 32:113 34:2 35:40 36:1303 37:3759
38:2062 39:608 40:161 41:3846 42:924 43:2118
44:237 45:14937 46:3699 47:320 49:1609 50:1753
51:92 52:1211 54:218 55:737 56:8 57:57
58:1728 59:1200 60:887 61:2390 62:2194 63:1961
64:5283 65:2383 66:5143 67:2869 68:1152 69:4048
70:1397 71:689 72:3180 74:2580 75:1483 76:682
77:2026 78:3675 79:2445 80:1864 81:1632 82:1342
83:1119 84:1256 85:3343 86:707 87:1775 88:2701
89:3024 90:430 91:7298 92:1741 93:2538 94:3089
95:4409 96:1256 97:345 98:984 99:970 100:90
101:1047 102:1362 103:25811 104:3702 105:436 106:728
107:2239 108:707 109:3994 110:2011 111:2942 112:1973
113:1616 114:1465 115:1874 116:1894 117:2307 118:2339
119:1884 120:1105 121:1083 122:2266 123:2213 124:1574
125:2094 128:1364 129:955 130:834 131:2035 132:761
133:355 134:1604 135:289 136:745 137:921 138:2300
139:1186 140:742 141:1186 142:1118 143:1260 144:1254
145:331 146:1392 147:1296 148:2210 149:1446 150:799
151:1080 152:1553 153:394 154:2315 155:1330 156:1487
157:1171 158:926 159:2018 160:2089 161:1129 162:3272
163:974 164:1498 165:1332 166:593 167:1776 168:3573
169:664 170:4251 171:767 172:2124 173:2935 174:969
175:1087 176:3110 177:4334 178:2894 179:1953 180:2309
181:2553 182:3216 183:1813 184:2412 185:18143 186:4197
187:3170 188:3283 189:2820 190:8861 191:1470 192:10657
193:7986 194:6579 195:4712 196:2901 197:2369 198:6042
199:6028 200:7422 201:5344 202:10598 203:10057 204:4657
205:3331 206:3528 207:3364 208:4008 209:4654 210:4254
211:2192 212:3694 213:3302 214:1220 215:61 216:6180
217:2524 218:1158 219:703 220:2082 221:973 222:978
223:1850
End of report
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