[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Aug 6 18:02:51 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 07 Aug, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 858507
Prefixes after maximum aggregation (per Origin AS): 325171
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 412640
Total ASes present in the Internet Routing Table: 71734
Prefixes per ASN: 11.97
Origin-only ASes present in the Internet Routing Table: 61663
Origin ASes announcing only one prefix: 25430
Transit ASes present in the Internet Routing Table: 10071
Transit-only ASes present in the Internet Routing Table: 330
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 54
Max AS path prepend of ASN ( 48366) 51
Prefixes from unregistered ASNs in the Routing Table: 1071
Number of instances of unregistered ASNs: 1077
Number of 32-bit ASNs allocated by the RIRs: 36808
Number of 32-bit ASNs visible in the Routing Table: 30644
Prefixes from 32-bit ASNs in the Routing Table: 142180
Number of bogon 32-bit ASNs visible in the Routing Table: 26
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 519
Number of addresses announced to Internet: 3039667968
Equivalent to 181 /8s, 45 /16s and 167 /24s
Percentage of available address space announced: 82.1
Percentage of allocated address space announced: 82.1
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: 285316
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 230457
Total APNIC prefixes after maximum aggregation: 65961
APNIC Deaggregation factor: 3.49
Prefixes being announced from the APNIC address blocks: 225882
Unique aggregates announced from the APNIC address blocks: 91010
APNIC Region origin ASes present in the Internet Routing Table: 11824
APNIC Prefixes per ASN: 19.10
APNIC Region origin ASes announcing only one prefix: 3352
APNIC Region transit ASes present in the Internet Routing Table: 1688
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 6999
Number of APNIC addresses announced to Internet: 773736192
Equivalent to 46 /8s, 30 /16s and 71 /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: 251200
Total ARIN prefixes after maximum aggregation: 115100
ARIN Deaggregation factor: 2.18
Prefixes being announced from the ARIN address blocks: 250776
Unique aggregates announced from the ARIN address blocks: 119453
ARIN Region origin ASes present in the Internet Routing Table: 18877
ARIN Prefixes per ASN: 13.28
ARIN Region origin ASes announcing only one prefix: 6863
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: 28
Number of ARIN region 32-bit ASNs visible in the Routing Table: 4039
Number of ARIN addresses announced to Internet: 1270036352
Equivalent to 75 /8s, 179 /16s and 55 /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: 238666
Total RIPE prefixes after maximum aggregation: 111665
RIPE Deaggregation factor: 2.14
Prefixes being announced from the RIPE address blocks: 235179
Unique aggregates announced from the RIPE address blocks: 143923
RIPE Region origin ASes present in the Internet Routing Table: 27998
RIPE Prefixes per ASN: 8.40
RIPE Region origin ASes announcing only one prefix: 12030
RIPE Region transit ASes present in the Internet Routing Table: 3900
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 54
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10326
Number of RIPE addresses announced to Internet: 711048576
Equivalent to 42 /8s, 97 /16s and 189 /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: 111106
Total LACNIC prefixes after maximum aggregation: 26557
LACNIC Deaggregation factor: 4.18
Prefixes being announced from the LACNIC address blocks: 112165
Unique aggregates announced from the LACNIC address blocks: 47159
LACNIC Region origin ASes present in the Internet Routing Table: 10779
LACNIC Prefixes per ASN: 10.41
LACNIC Region origin ASes announcing only one prefix: 2659
LACNIC Region transit ASes present in the Internet Routing Table: 2078
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8435
Number of LACNIC addresses announced to Internet: 176104704
Equivalent to 10 /8s, 127 /16s and 37 /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: 26005
Total AfriNIC prefixes after maximum aggregation: 5148
AfriNIC Deaggregation factor: 5.05
Prefixes being announced from the AfriNIC address blocks: 33986
Unique aggregates announced from the AfriNIC address blocks: 10639
AfriNIC Region origin ASes present in the Internet Routing Table: 1513
AfriNIC Prefixes per ASN: 22.46
AfriNIC Region origin ASes announcing only one prefix: 525
AfriNIC Region transit ASes present in the Internet Routing Table: 301
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 32
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 845
Number of AfriNIC addresses announced to Internet: 108407808
Equivalent to 6 /8s, 118 /16s and 44 /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 7576 9000 57 CMNET-GD Guangdong Mobile Communication
7545 5817 785 676 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4709 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3586 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3532 1023 56 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 2802 1897 55 VNPT-AS-VN VNPT Corp, VN
4766 2473 11121 570 KIXS-AS-KR Korea Telecom, KR
9498 2365 499 248 BBIL-AP BHARTI Airtel Ltd., IN
45090 2125 1197 73 CNNIC-TENCENT-NET-AP Shenzhen Tencent C
4755 2116 437 192 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
16509 5284 9643 2371 AMAZON-02, US
11492 4744 313 779 CABLEONE, US
7155 3983 264 32 VIASAT-SP-BACKBONE, US
22773 3973 3014 275 ASN-CXA-ALL-CCI-22773-RDC, US
16625 3551 1832 2465 AKAMAI-AS, US
6327 3368 1317 68 SHAW, CA
30036 2563 373 274 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2518 5029 456 CENTURYLINK-US-LEGACY-QWEST, US
5972 2288 486 799 DNIC-ASBLK-05800-06055, US
20115 2245 3015 509 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
12479 6799 1726 145 UNI2-AS, ES
20940 3740 3348 216 AKAMAI-ASN1, NL
39891 3267 187 22 ALJAWWALSTC-AS, SA
8551 2945 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2914 2283 897 ROSTELECOM-AS, RU
9009 2443 255 1308 M247, GB
34984 2218 357 594 TELLCOM-AS, TR
61317 1718 277 910 ASDETUK www.heficed.com, GB
58224 1624 889 562 TCI, IR
13188 1610 100 27 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 8631 3452 588 Uninet S.A. de C.V., MX
10620 3406 525 650 Telmex Colombia S.A., CO
11830 2507 369 62 Instituto Costarricense de Electricidad
13999 1779 411 479 Mega Cable, S.A. de C.V., MX
6503 1499 359 476 Axtel, S.A.B. de C.V., MX
28573 1443 2306 230 CLARO S.A., BR
3816 1240 652 152 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1098 369 22 Telefonica del Peru S.A.A., PE
26615 1091 2351 134 TIM SA, BR
11664 979 193 437 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 1650 393 22 LINKdotNET-AS, EG
24835 1458 499 30 RAYA-AS, EG
36992 1306 1489 267 ETISALAT-MISR, EG
36903 1183 537 110 MT-MPLS, MA
29571 734 68 11 ORANGE-COTE-IVOIRE, CI
6713 613 1863 34 IAM-AS, MA
36935 570 522 40 Vodafone-, EG
15399 500 49 28 WANANCHI-, KE
37342 475 32 1 MOVITEL, MZ
2018 329 319 74 TENET-1, ZA
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 8631 3452 588 Uninet S.A. de C.V., MX
9808 7576 9000 57 CMNET-GD Guangdong Mobile Communication
12479 6799 1726 145 UNI2-AS, ES
7545 5817 785 676 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 5284 9643 2371 AMAZON-02, US
11492 4744 313 779 CABLEONE, US
4538 4709 4192 74 ERX-CERNET-BKB China Education and Rese
7155 3983 264 32 VIASAT-SP-BACKBONE, US
22773 3973 3014 275 ASN-CXA-ALL-CCI-22773-RDC, US
20940 3740 3348 216 AKAMAI-ASN1, NL
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 7576 7519 CMNET-GD Guangdong Mobile Communication Co.Ltd.
12479 6799 6654 UNI2-AS, ES
7545 5817 5141 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4709 4635 ERX-CERNET-BKB China Education and Research Net
11492 4744 3965 CABLEONE, US
7155 3983 3951 VIASAT-SP-BACKBONE, US
22773 3973 3698 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3586 3566 VIETEL-AS-AP Viettel Group, VN
20940 3740 3524 AKAMAI-ASN1, NL
7713 3532 3476 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
54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, 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
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
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
37.16.88.0/23 Origin: 202245 UNASSIGNED
Transit: 28716 RETELIT-AS Internet Service Provider, IT
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 /11:102 /12:305
/13:589 /14:1194 /15:2004 /16:13443 /17:8276 /18:14012
/19:25464 /20:42483 /21:50521 /22:106947 /23:91548 /24:500110
/25:1439 /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 5736 6799 UNI2-AS, ES
11492 3719 4744 CABLEONE, US
6327 3175 3368 SHAW, CA
8151 3137 8631 Uninet S.A. de C.V., MX
7155 3071 3983 VIASAT-SP-BACKBONE, US
22773 2969 3973 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2803 3267 ALJAWWALSTC-AS, SA
8551 2411 2945 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2213 2563 MEDIACOM-ENTERPRISE-BUSINESS, US
11830 1934 2507 Instituto Costarricense de Electricidad y Telec
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1908 2:1118 3:141 4:20 5:3588 6:82
7:5 8:1535 9:1 11:164 12:1740 13:368
14:2279 15:96 16:18 17:331 18:104 20:124
21:1 22:188 23:4944 24:2413 25:2 27:2512
29:19 31:2316 32:116 34:1 35:47 36:1599
37:3792 38:2186 39:618 40:186 41:3780 42:968
43:2061 44:270 45:15369 46:3663 47:348 48:7
49:1614 50:1816 51:101 52:1243 54:217 55:644
56:4 57:53 58:1751 59:1203 60:932 61:2337
62:2302 63:1963 64:5377 65:2359 66:5005 67:2880
68:1167 69:4095 70:1367 71:679 72:3143 74:2614
75:1493 76:697 77:2014 78:1649 79:2284 80:1876
81:1534 82:1354 83:1137 84:1278 85:2730 86:692
87:1815 88:954 89:2979 90:507 91:7388 92:1810
93:2537 94:3114 95:3508 96:1292 97:344 98:977
99:962 100:93 101:1024 102:1602 103:26660 104:3962
105:432 106:796 107:2294 108:734 109:3869 110:2027
111:3147 112:1924 113:1410 114:1465 115:1887 116:1885
117:2350 118:2325 119:1904 120:1457 121:1056 122:2533
123:2158 124:1599 125:2075 128:1329 129:1320 130:893
131:1998 132:753 133:362 134:1650 135:303 136:786
137:943 138:2396 139:1198 140:762 141:1206 142:1231
143:1340 144:1261 145:324 146:1495 147:1368 148:2143
149:1482 150:823 151:1067 152:1628 153:422 154:2999
155:1337 156:1722 157:1210 158:968 159:2020 160:2317
161:1242 162:3391 163:1030 164:1538 165:1400 166:622
167:1776 168:3660 169:707 170:4293 171:800 172:2624
173:2952 174:1015 175:1092 176:3197 177:4383 178:2950
179:1889 180:2250 181:2626 182:3216 183:1997 184:2418
185:18682 186:4237 187:3153 188:3339 189:2901 190:8725
191:1361 192:10726 193:8280 194:6734 195:4819 196:2884
197:2149 198:6037 199:6013 200:7345 201:5206 202:10559
203:10073 204:4619 205:3362 206:3698 207:3344 208:4037
209:4709 210:4185 211:2339 212:3722 213:3460 214:1202
215:56 216:6319 217:2577 218:1203 219:681 220:1975
221:954 222:870 223:1964
End of report
More information about the sanog
mailing list