[cmNOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Ven 26 Mar 18:02:38 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 27 Mar, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 853765
Prefixes after maximum aggregation (per Origin AS): 323350
Deaggregation factor: 2.64
Unique aggregates announced (without unneeded subnets): 405865
Total ASes present in the Internet Routing Table: 70923
Prefixes per ASN: 12.04
Origin-only ASes present in the Internet Routing Table: 61009
Origin ASes announcing only one prefix: 25176
Transit ASes present in the Internet Routing Table: 9914
Transit-only ASes present in the Internet Routing Table: 307
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 38
Max AS path prepend of ASN ( 37385) 33
Prefixes from unregistered ASNs in the Routing Table: 971
Number of instances of unregistered ASNs: 975
Number of 32-bit ASNs allocated by the RIRs: 35515
Number of 32-bit ASNs visible in the Routing Table: 29547
Prefixes from 32-bit ASNs in the Routing Table: 137633
Number of bogon 32-bit ASNs visible in the Routing Table: 15
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 512
Number of addresses announced to Internet: 2909527424
Equivalent to 173 /8s, 107 /16s and 221 /24s
Percentage of available address space announced: 78.6
Percentage of allocated address space announced: 78.6
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: 289671
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 226292
Total APNIC prefixes after maximum aggregation: 65353
APNIC Deaggregation factor: 3.46
Prefixes being announced from the APNIC address blocks: 222401
Unique aggregates announced from the APNIC address blocks: 89095
APNIC Region origin ASes present in the Internet Routing Table: 11418
APNIC Prefixes per ASN: 19.48
APNIC Region origin ASes announcing only one prefix: 3248
APNIC Region transit ASes present in the Internet Routing Table: 1619
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 31
Number of APNIC region 32-bit ASNs visible in the Routing Table: 6573
Number of APNIC addresses announced to Internet: 772179200
Equivalent to 46 /8s, 6 /16s and 133 /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: 244801
Total ARIN prefixes after maximum aggregation: 112519
ARIN Deaggregation factor: 2.18
Prefixes being announced from the ARIN address blocks: 245330
Unique aggregates announced from the ARIN address blocks: 117363
ARIN Region origin ASes present in the Internet Routing Table: 18764
ARIN Prefixes per ASN: 13.07
ARIN Region origin ASes announcing only one prefix: 6804
ARIN Region transit ASes present in the Internet Routing Table: 1932
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: 3780
Number of ARIN addresses announced to Internet: 1144306688
Equivalent to 68 /8s, 52 /16s and 188 /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: 243349
Total RIPE prefixes after maximum aggregation: 113363
RIPE Deaggregation factor: 2.15
Prefixes being announced from the RIPE address blocks: 239232
Unique aggregates announced from the RIPE address blocks: 140771
RIPE Region origin ASes present in the Internet Routing Table: 27822
RIPE Prefixes per ASN: 8.60
RIPE Region origin ASes announcing only one prefix: 11942
RIPE Region transit ASes present in the Internet Routing Table: 3892
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 10051
Number of RIPE addresses announced to Internet: 710691456
Equivalent to 42 /8s, 92 /16s and 74 /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: 112916
Total LACNIC prefixes after maximum aggregation: 26496
LACNIC Deaggregation factor: 4.26
Prefixes being announced from the LACNIC address blocks: 114028
Unique aggregates announced from the LACNIC address blocks: 48190
LACNIC Region origin ASes present in the Internet Routing Table: 10742
LACNIC Prefixes per ASN: 10.62
LACNIC Region origin ASes announcing only one prefix: 2674
LACNIC Region transit ASes present in the Internet Routing Table: 2024
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: 8346
Number of LACNIC addresses announced to Internet: 174829312
Equivalent to 10 /8s, 107 /16s and 175 /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: 25435
Total AfriNIC prefixes after maximum aggregation: 4872
AfriNIC Deaggregation factor: 5.22
Prefixes being announced from the AfriNIC address blocks: 32262
Unique aggregates announced from the AfriNIC address blocks: 9978
AfriNIC Region origin ASes present in the Internet Routing Table: 1458
AfriNIC Prefixes per ASN: 22.13
AfriNIC Region origin ASes announcing only one prefix: 508
AfriNIC Region transit ASes present in the Internet Routing Table: 293
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 797
Number of AfriNIC addresses announced to Internet: 107100928
Equivalent to 6 /8s, 98 /16s and 59 /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 6259 9045 61 CMNET-GD Guangdong Mobile Communication
7545 5724 783 673 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4813 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3538 1330 21 VIETEL-AS-AP Viettel Group, VN
7713 3524 1014 58 TELKOMNET-AS-AP PT Telekomunikasi Indon
45899 2908 1896 55 VNPT-AS-VN VNPT Corp, VN
4766 2436 11104 565 KIXS-AS-KR Korea Telecom, KR
9498 2316 482 231 BBIL-AP BHARTI Airtel Ltd., IN
4755 2147 441 190 TATACOMM-AS TATA Communications formerl
45090 2097 1197 71 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 4904 9258 2208 AMAZON-02, US
11492 4747 315 704 CABLEONE, US
7155 4030 264 32 VIASAT-SP-BACKBONE, US
22773 3910 2998 245 ASN-CXA-ALL-CCI-22773-RDC, US
16625 3393 1760 2409 AKAMAI-AS, US
6327 3360 1317 72 SHAW, CA
30036 2540 372 93 MEDIACOM-ENTERPRISE-BUSINESS, US
209 2527 5054 486 CENTURYLINK-US-LEGACY-QWEST, US
5650 2346 2998 1637 FRONTIER-FRTR, US
5972 2214 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 7740 1041 3484 TTNET, TR
12479 6405 1701 138 UNI2-AS, ES
20940 3557 3347 202 AKAMAI-ASN1, NL
39891 3266 187 22 ALJAWWALSTC-AS, SA
8551 3222 379 41 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2899 2284 898 ROSTELECOM-AS, RU
9009 2375 246 1277 M247, GB
34984 2183 355 582 TELLCOM-AS, TR
13188 1610 100 31 TRIOLAN, UA
58224 1570 881 572 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 8480 3472 570 Uninet S.A. de C.V., MX
10620 3411 527 604 Telmex Colombia S.A., CO
11830 2539 369 63 Instituto Costarricense de Electricidad
7303 1872 1732 296 Telecom Argentina S.A., AR
13999 1651 446 427 Mega Cable, S.A. de C.V., MX
6503 1442 311 475 Axtel, S.A.B. de C.V., MX
28573 1392 2269 222 CLARO S.A., BR
3816 1210 623 154 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1127 377 39 Telefonica del Peru S.A.A., PE
11664 1002 212 401 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 1581 393 22 LINKdotNET-AS, EG
24835 1443 486 27 RAYA-AS, EG
36992 1194 1537 174 ETISALAT-MISR, EG
36903 977 510 104 MT-MPLS, MA
29571 710 68 11 ORANGE-COTE-IVOIRE, CI
6713 540 1863 34 IAM-AS, MA
36935 514 522 40 Vodafone-, EG
37342 487 32 1 MOVITEL, MZ
15399 452 47 17 WANANCHI-, KE
23889 447 232 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 8480 3472 570 Uninet S.A. de C.V., MX
47331 7740 1041 3484 TTNET, TR
12479 6405 1701 138 UNI2-AS, ES
9808 6259 9045 61 CMNET-GD Guangdong Mobile Communication
7545 5724 783 673 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 4904 9258 2208 AMAZON-02, US
4538 4813 4192 74 ERX-CERNET-BKB China Education and Rese
11492 4747 315 704 CABLEONE, US
7155 4030 264 32 VIASAT-SP-BACKBONE, US
22773 3910 2998 245 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 6405 6267 UNI2-AS, ES
9808 6259 6198 CMNET-GD Guangdong Mobile Communication Co.Ltd.
7545 5724 5051 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4813 4739 ERX-CERNET-BKB China Education and Research Net
47331 7740 4256 TTNET, TR
11492 4747 4043 CABLEONE, US
7155 4030 3998 VIASAT-SP-BACKBONE, US
22773 3910 3665 ASN-CXA-ALL-CCI-22773-RDC, US
7552 3538 3517 VIETEL-AS-AP Viettel Group, VN
7713 3524 3466 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
32985 UNALLOCATED 8.28.31.0/24 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
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 /8:10 /9:12 /10:40 /11:102 /12:292
/13:576 /14:1183 /15:1946 /16:13515 /17:8328 /18:13797
/19:25791 /20:42402 /21:51347 /22:106418 /23:90554 /24:496041
/25:1411 /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 6918 7740 TTNET, TR
12479 5359 6405 UNI2-AS, ES
11492 3801 4747 CABLEONE, US
6327 3165 3360 SHAW, CA
7155 3118 4030 VIASAT-SP-BACKBONE, US
8151 3052 8480 Uninet S.A. de C.V., MX
22773 2952 3910 ASN-CXA-ALL-CCI-22773-RDC, US
39891 2801 3266 ALJAWWALSTC-AS, SA
8551 2686 3222 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2237 2540 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1877 2:1107 3:94 4:20 5:3567 6:64
7:5 8:1503 9:1 11:36 12:1750 13:352
14:2327 15:73 16:15 17:317 18:93 20:129
22:188 23:4596 24:2391 25:2 27:2500 31:2267
32:113 34:3 35:40 36:1282 37:3761 38:2071
39:607 40:153 41:3836 42:924 43:2120 44:239
45:14958 46:3684 47:320 49:1624 50:1754 51:92
52:1203 54:216 55:752 56:7 57:57 58:1736
59:1207 60:890 61:2395 62:2203 63:1973 64:5273
65:2382 66:5122 67:2885 68:1160 69:4047 70:1403
71:686 72:3171 74:2580 75:1482 76:684 77:2006
78:3665 79:2411 80:1841 81:1632 82:1352 83:1110
84:1263 85:3345 86:710 87:1786 88:2706 89:3017
90:423 91:7278 92:1745 93:2555 94:3042 95:4407
96:1257 97:344 98:986 99:970 100:89 101:1049
102:1293 103:25741 104:3696 105:426 106:720 107:2225
108:704 109:3962 110:1993 111:2937 112:1933 113:1622
114:1463 115:1877 116:1891 117:2293 118:2323 119:1894
120:1115 121:1086 122:2295 123:2185 124:1572 125:2101
128:1365 129:948 130:827 131:2026 132:746 133:355
134:1590 135:289 136:743 137:912 138:2301 139:1182
140:738 141:1183 142:1114 143:1274 144:1252 145:333
146:1391 147:1294 148:2203 149:1438 150:793 151:1088
152:1552 153:390 154:2272 155:1337 156:1510 157:1169
158:925 159:2032 160:2078 161:1135 162:3244 163:981
164:1494 165:1336 166:598 167:1778 168:3580 169:662
170:4282 171:763 172:2118 173:2945 174:968 175:1091
176:3067 177:4344 178:2895 179:1961 180:2269 181:2589
182:3208 183:1809 184:2411 185:18100 186:4197 187:3123
188:3304 189:2846 190:8891 191:1490 192:10611 193:7970
194:6539 195:4697 196:2908 197:2331 198:6038 199:6029
200:7408 201:5351 202:10597 203:10128 204:4652 205:3319
206:3527 207:3324 208:3999 209:4650 210:4258 211:2207
212:3675 213:3283 214:1214 215:61 216:6186 217:2521
218:1146 219:703 220:2073 221:974 222:968 223:1860
End of report
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