[cmNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Ven 27 Aou 18:02:42 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 28 Aug, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 860552
Prefixes after maximum aggregation (per Origin AS): 325697
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 413582
Total ASes present in the Internet Routing Table: 71880
Prefixes per ASN: 11.97
Origin-only ASes present in the Internet Routing Table: 61776
Origin ASes announcing only one prefix: 25491
Transit ASes present in the Internet Routing Table: 10104
Transit-only ASes present in the Internet Routing Table: 331
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 37
Max AS path prepend of ASN (141827) 33
Prefixes from unregistered ASNs in the Routing Table: 1009
Number of instances of unregistered ASNs: 1014
Number of 32-bit ASNs allocated by the RIRs: 37049
Number of 32-bit ASNs visible in the Routing Table: 30796
Prefixes from 32-bit ASNs in the Routing Table: 142979
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: 510
Number of addresses announced to Internet: 3037760640
Equivalent to 181 /8s, 16 /16s and 140 /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: 285737
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 231019
Total APNIC prefixes after maximum aggregation: 65949
APNIC Deaggregation factor: 3.50
Prefixes being announced from the APNIC address blocks: 226547
Unique aggregates announced from the APNIC address blocks: 90942
APNIC Region origin ASes present in the Internet Routing Table: 11889
APNIC Prefixes per ASN: 19.06
APNIC Region origin ASes announcing only one prefix: 3374
APNIC Region transit ASes present in the Internet Routing Table: 1676
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: 7045
Number of APNIC addresses announced to Internet: 772854528
Equivalent to 46 /8s, 16 /16s and 211 /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: 251710
Total ARIN prefixes after maximum aggregation: 115152
ARIN Deaggregation factor: 2.19
Prefixes being announced from the ARIN address blocks: 251301
Unique aggregates announced from the ARIN address blocks: 119679
ARIN Region origin ASes present in the Internet Routing Table: 18898
ARIN Prefixes per ASN: 13.30
ARIN Region origin ASes announcing only one prefix: 6875
ARIN Region transit ASes present in the Internet Routing Table: 1951
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: 4086
Number of ARIN addresses announced to Internet: 1268211200
Equivalent to 75 /8s, 151 /16s and 94 /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: 239034
Total RIPE prefixes after maximum aggregation: 112092
RIPE Deaggregation factor: 2.13
Prefixes being announced from the RIPE address blocks: 235555
Unique aggregates announced from the RIPE address blocks: 144580
RIPE Region origin ASes present in the Internet Routing Table: 28044
RIPE Prefixes per ASN: 8.40
RIPE Region origin ASes announcing only one prefix: 12059
RIPE Region transit ASes present in the Internet Routing Table: 3907
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10369
Number of RIPE addresses announced to Internet: 711094656
Equivalent to 42 /8s, 98 /16s and 113 /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: 111759
Total LACNIC prefixes after maximum aggregation: 26575
LACNIC Deaggregation factor: 4.21
Prefixes being announced from the LACNIC address blocks: 112716
Unique aggregates announced from the LACNIC address blocks: 47103
LACNIC Region origin ASes present in the Internet Routing Table: 10786
LACNIC Prefixes per ASN: 10.45
LACNIC Region origin ASes announcing only one prefix: 2654
LACNIC Region transit ASes present in the Internet Routing Table: 2099
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8439
Number of LACNIC addresses announced to Internet: 176646144
Equivalent to 10 /8s, 135 /16s and 104 /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: 26020
Total AfriNIC prefixes after maximum aggregation: 5183
AfriNIC Deaggregation factor: 5.02
Prefixes being announced from the AfriNIC address blocks: 33923
Unique aggregates announced from the AfriNIC address blocks: 10826
AfriNIC Region origin ASes present in the Internet Routing Table: 1524
AfriNIC Prefixes per ASN: 22.26
AfriNIC Region origin ASes announcing only one prefix: 529
AfriNIC Region transit ASes present in the Internet Routing Table: 305
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: 857
Number of AfriNIC addresses announced to Internet: 108622592
Equivalent to 6 /8s, 121 /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 7923 9000 57 CMNET-GD Guangdong Mobile Communication
7545 5816 785 675 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4707 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3608 1330 20 VIETEL-AS-AP Viettel Group, VN
7713 3535 1023 56 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 2802 1897 56 VNPT-AS-VN VNPT Corp, VN
4766 2497 11121 584 KIXS-AS-KR Korea Telecom, KR
9498 2360 502 238 BBIL-AP BHARTI Airtel Ltd., IN
45090 2129 1198 75 CNNIC-TENCENT-NET-AP Shenzhen Tencent C
4755 2116 437 194 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 5483 9667 2436 AMAZON-02, US
11492 4687 310 757 CABLEONE, US
22773 3981 3031 273 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3975 264 32 VIASAT-SP-BACKBONE, US
16625 3581 1853 2490 AKAMAI-AS, US
6327 3364 1313 62 SHAW, CA
30036 2581 374 197 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2516 5029 452 CENTURYLINK-US-LEGACY-QWEST, US
5972 2290 486 814 DNIC-ASBLK-05800-06055, US
20115 2244 3048 506 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 6785 1726 143 UNI2-AS, ES
20940 3760 3348 219 AKAMAI-ASN1, NL
39891 3267 187 22 ALJAWWALSTC-AS, SA
8551 2926 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2905 2278 894 ROSTELECOM-AS, RU
9009 2483 260 1328 M247, GB
34984 2219 357 595 TELLCOM-AS, TR
61317 1763 265 971 ASDETUK www.heficed.com, GB
58224 1627 889 570 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 8856 3461 583 Uninet S.A. de C.V., MX
10620 3411 523 671 Telmex Colombia S.A., CO
11830 2500 369 62 Instituto Costarricense de Electricidad
13999 1822 415 474 Mega Cable, S.A. de C.V., MX
6503 1509 359 477 Axtel, S.A.B. de C.V., MX
28573 1457 2311 235 CLARO S.A., BR
3816 1240 652 152 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
26615 1105 2351 134 TIM SA, BR
6147 1087 369 22 Telefonica del Peru S.A.A., PE
11664 982 194 437 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 1638 393 22 LINKdotNET-AS, EG
24835 1464 503 31 RAYA-AS, EG
36992 1310 1489 267 ETISALAT-MISR, EG
36903 1183 537 110 MT-MPLS, MA
29571 757 68 11 ORANGE-COTE-IVOIRE, CI
6713 613 1863 34 IAM-AS, MA
36935 583 522 40 Vodafone-, EG
15399 500 49 28 WANANCHI-, KE
37342 469 32 1 MOVITEL, MZ
2018 337 319 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 8856 3461 583 Uninet S.A. de C.V., MX
9808 7923 9000 57 CMNET-GD Guangdong Mobile Communication
12479 6785 1726 143 UNI2-AS, ES
7545 5816 785 675 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 5483 9667 2436 AMAZON-02, US
4538 4707 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4687 310 757 CABLEONE, US
22773 3981 3031 273 ASN-CXA-ALL-CCI-22773-RDC, US
7155 3975 264 32 VIASAT-SP-BACKBONE, US
20940 3760 3348 219 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 7923 7866 CMNET-GD Guangdong Mobile Communication Co.Ltd.
12479 6785 6642 UNI2-AS, ES
7545 5816 5141 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4707 4633 ERX-CERNET-BKB China Education and Research Net
7155 3975 3943 VIASAT-SP-BACKBONE, US
11492 4687 3930 CABLEONE, US
22773 3981 3708 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3608 3588 VIETEL-AS-AP Viettel Group, VN
20940 3760 3541 AKAMAI-ASN1, NL
7713 3535 3479 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
1782 UNALLOCATED 8.42.19.0/24 46887 LIGHTOWER, 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
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
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.177.96.0/24 Origin: 397300 UNASSIGNED
23.177.96.0/24 Transit: 33387 NOCIX, US
27.100.7.0/24 Origin: 56096 UNASSIGNED
27.100.7.0/24 Transit: 45455 TH-2S1N-AP Two S One N Co Ltd, Internet
27.126.156.0/22 Origin: 55827 UNASSIGNED
27.126.156.0/22 Transit: 9930 TTNET-MY TIME dotCom Berhad No. 14, Jala
27.126.156.0/23 Origin: 55827 UNASSIGNED
27.126.156.0/23 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 /8:16 /9:13 /10:41 /11:101 /12:303
/13:589 /14:1195 /15:2004 /16:13421 /17:8204 /18:13966
/19:25393 /20:42461 /21:50826 /22:107094 /23:91803 /24:501675
/25:1447 /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 5719 6785 UNI2-AS, ES
11492 3654 4687 CABLEONE, US
6327 3175 3364 SHAW, CA
8151 3168 8856 Uninet S.A. de C.V., MX
7155 3063 3975 VIASAT-SP-BACKBONE, US
22773 2981 3981 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2803 3267 ALJAWWALSTC-AS, SA
8551 2392 2926 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2233 2581 MEDIACOM-ENTERPRISE-BUSINESS, US
11830 1933 2500 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)
----------------------------------------------
1:1909 2:1101 3:142 4:20 5:3577 6:84
7:5 8:1540 9:1 11:164 12:1747 13:387
14:2281 15:99 16:21 17:343 18:105 20:124
21:4 22:188 23:5007 24:2458 25:2 27:2505
29:19 31:2347 32:113 34:1 35:47 36:1718
37:3798 38:2202 39:640 40:165 41:3816 42:966
43:2075 44:281 45:15421 46:3665 47:349 48:7
49:1623 50:1817 51:97 52:1280 54:251 55:740
56:4 57:53 58:1732 59:1201 60:932 61:2295
62:2312 63:1956 64:5366 65:2363 66:4985 67:2875
68:1168 69:4124 70:1362 71:676 72:3152 74:2621
75:1500 76:699 77:2045 78:1668 79:2258 80:1865
81:1544 82:1364 83:1148 84:1293 85:2746 86:711
87:1805 88:969 89:3015 90:511 91:7388 92:1801
93:2550 94:3126 95:3484 96:1303 97:350 98:979
99:961 100:76 101:1048 102:1620 103:26811 104:3989
105:437 106:812 107:2280 108:728 109:3874 110:2032
111:3145 112:1935 113:1422 114:1467 115:1912 116:1892
117:2375 118:2328 119:1888 120:1510 121:1064 122:2520
123:2161 124:1600 125:2066 128:1340 129:1365 130:868
131:2020 132:758 133:363 134:1794 135:301 136:778
137:854 138:2380 139:1184 140:751 141:1207 142:1204
143:1342 144:1268 145:322 146:1492 147:1413 148:2163
149:1497 150:821 151:1082 152:1649 153:428 154:3007
155:1323 156:1680 157:1222 158:969 159:2010 160:2344
161:1238 162:3387 163:1097 164:1555 165:1414 166:595
167:1783 168:3638 169:701 170:4363 171:808 172:2718
173:2908 174:1018 175:1100 176:3215 177:4445 178:2973
179:1873 180:2263 181:2625 182:3217 183:2019 184:2417
185:18735 186:4225 187:3160 188:3314 189:2908 190:8721
191:1350 192:10706 193:8297 194:6748 195:4854 196:2898
197:2125 198:6007 199:5975 200:7369 201:5232 202:10571
203:10067 204:4597 205:3381 206:3740 207:3342 208:4021
209:4704 210:4184 211:2344 212:3748 213:3446 214:1166
215:60 216:6328 217:2581 218:1213 219:679 220:1953
221:963 222:856 223:2034
End of report
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