[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Feb 19 18:02:52 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 20 Feb, 2021
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 846303
Prefixes after maximum aggregation (per Origin AS): 322229
Deaggregation factor: 2.63
Unique aggregates announced (without unneeded subnets): 403355
Total ASes present in the Internet Routing Table: 70577
Prefixes per ASN: 11.99
Origin-only ASes present in the Internet Routing Table: 60708
Origin ASes announcing only one prefix: 25065
Transit ASes present in the Internet Routing Table: 9869
Transit-only ASes present in the Internet Routing Table: 298
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 62
Max AS path prepend of ASN (266299) 59
Prefixes from unregistered ASNs in the Routing Table: 974
Number of instances of unregistered ASNs: 978
Number of 32-bit ASNs allocated by the RIRs: 35117
Number of 32-bit ASNs visible in the Routing Table: 29149
Prefixes from 32-bit ASNs in the Routing Table: 136109
Number of bogon 32-bit ASNs visible in the Routing Table: 16
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 598
Number of addresses announced to Internet: 2914957184
Equivalent to 173 /8s, 190 /16s and 183 /24s
Percentage of available address space announced: 78.7
Percentage of allocated address space announced: 78.7
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: 288946
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 221371
Total APNIC prefixes after maximum aggregation: 65337
APNIC Deaggregation factor: 3.39
Prefixes being announced from the APNIC address blocks: 217208
Unique aggregates announced from the APNIC address blocks: 88272
APNIC Region origin ASes present in the Internet Routing Table: 11277
APNIC Prefixes per ASN: 19.26
APNIC Region origin ASes announcing only one prefix: 3214
APNIC Region transit ASes present in the Internet Routing Table: 1602
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 30
Number of APNIC region 32-bit ASNs visible in the Routing Table: 6431
Number of APNIC addresses announced to Internet: 770503680
Equivalent to 45 /8s, 236 /16s and 244 /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: 243913
Total ARIN prefixes after maximum aggregation: 112217
ARIN Deaggregation factor: 2.17
Prefixes being announced from the ARIN address blocks: 244427
Unique aggregates announced from the ARIN address blocks: 116579
ARIN Region origin ASes present in the Internet Routing Table: 18734
ARIN Prefixes per ASN: 13.05
ARIN Region origin ASes announcing only one prefix: 6811
ARIN Region transit ASes present in the Internet Routing Table: 1922
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 3720
Number of ARIN addresses announced to Internet: 1151854592
Equivalent to 68 /8s, 167 /16s and 232 /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: 242151
Total RIPE prefixes after maximum aggregation: 112676
RIPE Deaggregation factor: 2.15
Prefixes being announced from the RIPE address blocks: 238090
Unique aggregates announced from the RIPE address blocks: 139690
RIPE Region origin ASes present in the Internet Routing Table: 27745
RIPE Prefixes per ASN: 8.58
RIPE Region origin ASes announcing only one prefix: 11909
RIPE Region transit ASes present in the Internet Routing Table: 3903
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 35
Number of RIPE region 32-bit ASNs visible in the Routing Table: 9952
Number of RIPE addresses announced to Internet: 710200960
Equivalent to 42 /8s, 84 /16s and 206 /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: 112695
Total LACNIC prefixes after maximum aggregation: 26368
LACNIC Deaggregation factor: 4.27
Prefixes being announced from the LACNIC address blocks: 113848
Unique aggregates announced from the LACNIC address blocks: 48239
LACNIC Region origin ASes present in the Internet Routing Table: 10666
LACNIC Prefixes per ASN: 10.67
LACNIC Region origin ASes announcing only one prefix: 2629
LACNIC Region transit ASes present in the Internet Routing Table: 2013
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 62
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8267
Number of LACNIC addresses announced to Internet: 174441472
Equivalent to 10 /8s, 101 /16s and 196 /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: 25198
Total AfriNIC prefixes after maximum aggregation: 4895
AfriNIC Deaggregation factor: 5.15
Prefixes being announced from the AfriNIC address blocks: 32132
Unique aggregates announced from the AfriNIC address blocks: 10035
AfriNIC Region origin ASes present in the Internet Routing Table: 1452
AfriNIC Prefixes per ASN: 22.13
AfriNIC Region origin ASes announcing only one prefix: 502
AfriNIC Region transit ASes present in the Internet Routing Table: 283
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 779
Number of AfriNIC addresses announced to Internet: 107530240
Equivalent to 6 /8s, 104 /16s and 200 /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
7545 5727 782 668 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4749 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3412 1330 19 VIETEL-AS-AP Viettel Group, VN
7713 3229 935 528 TELKOMNET-AS-AP PT Telekomunikasi Indon
9808 3220 9045 60 CMNET-GD Guangdong Mobile Communication
45899 2886 1896 55 VNPT-AS-VN VNPT Corp, VN
4766 2446 11105 568 KIXS-AS-KR Korea Telecom, KR
9498 2306 482 230 BBIL-AP BHARTI Airtel Ltd., IN
4755 2142 441 191 TATACOMM-AS TATA Communications formerl
45090 2080 1045 63 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 4834 9093 2175 AMAZON-02, US
11492 4753 315 729 CABLEONE, US
7155 4038 264 32 VIASAT-SP-BACKBONE, US
22773 3910 2996 250 ASN-CXA-ALL-CCI-22773-RDC, US
6327 3329 1317 72 SHAW, CA
16625 3310 1726 2353 AKAMAI-AS, US
209 2519 5058 502 CENTURYLINK-US-LEGACY-QWEST, US
30036 2509 370 84 MEDIACOM-ENTERPRISE-BUSINESS, US
5650 2354 3000 1642 FRONTIER-FRTR, US
5972 2188 437 773 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 8232 1100 3147 TTNET, TR
12479 6320 1701 147 UNI2-AS, ES
39891 3459 195 22 ALJAWWALSTC-AS, SA
20940 3420 3347 207 AKAMAI-ASN1, NL
8551 3009 379 41 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
12389 2877 2282 891 ROSTELECOM-AS, RU
9009 2404 245 1300 M247, GB
34984 2178 355 583 TELLCOM-AS, TR
13188 1610 100 31 TRIOLAN, UA
58224 1525 873 563 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 8345 3469 591 Uninet S.A. de C.V., MX
10620 3396 526 614 Telmex Colombia S.A., CO
11830 2563 369 63 Instituto Costarricense de Electricidad
13999 1630 433 417 Mega Cable, S.A. de C.V., MX
6503 1442 311 475 Axtel, S.A.B. de C.V., MX
7303 1440 914 261 Telecom Argentina S.A., AR
28573 1391 2261 221 CLARO S.A., BR
3816 1171 594 148 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
6147 1060 377 39 Telefonica del Peru S.A.A., PE
11664 990 211 409 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 1577 393 22 LINKdotNET-AS, EG
24835 1247 482 29 RAYA-AS, EG
36992 1186 1537 174 ETISALAT-MISR, EG
36903 978 510 101 MT-MPLS, MA
29571 704 68 11 ORANGE-COTE-IVOIRE, CI
6713 536 1863 34 IAM-AS, MA
37342 485 32 1 MOVITEL, MZ
15399 483 46 18 WANANCHI-, KE
36935 476 522 40 Vodafone-, EG
23889 454 232 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 8345 3469 591 Uninet S.A. de C.V., MX
47331 8232 1100 3147 TTNET, TR
12479 6320 1701 147 UNI2-AS, ES
7545 5727 782 668 TPG-INTERNET-AP TPG Telecom Limited, AU
16509 4834 9093 2175 AMAZON-02, US
11492 4753 315 729 CABLEONE, US
4538 4749 4192 74 ERX-CERNET-BKB China Education and Rese
7155 4038 264 32 VIASAT-SP-BACKBONE, US
22773 3910 2996 250 ASN-CXA-ALL-CCI-22773-RDC, US
39891 3459 195 22 ALJAWWALSTC-AS, SA
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 6320 6173 UNI2-AS, ES
47331 8232 5085 TTNET, TR
7545 5727 5059 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4749 4675 ERX-CERNET-BKB China Education and Research Net
11492 4753 4024 CABLEONE, US
7155 4038 4006 VIASAT-SP-BACKBONE, US
22773 3910 3660 ASN-CXA-ALL-CCI-22773-RDC, US
39891 3459 3437 ALJAWWALSTC-AS, SA
7552 3412 3393 VIETEL-AS-AP Viettel Group, VN
6327 3329 3257 SHAW, CA
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 8.23.52.0/24 174 COGENT-174, 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
23.226.240.0/20 Origin: 40430 UNASSIGNED
Transit: 174 COGENT-174, 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
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 /8:11 /9:12 /10:41 /11:102 /12:293
/13:579 /14:1182 /15:1932 /16:13476 /17:8304 /18:13783
/19:25623 /20:41705 /21:50836 /22:105175 /23:89696 /24:492111
/25:1442 /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 7368 8232 TTNET, TR
12479 5286 6320 UNI2-AS, ES
11492 3809 4753 CABLEONE, US
6327 3134 3329 SHAW, CA
7155 3126 4038 VIASAT-SP-BACKBONE, US
22773 2953 3910 ASN-CXA-ALL-CCI-22773-RDC, US
8151 2916 8345 Uninet S.A. de C.V., MX
39891 2801 3459 ALJAWWALSTC-AS, SA
8551 2473 3009 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
30036 2238 2509 MEDIACOM-ENTERPRISE-BUSINESS, US
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1875 2:1169 3:94 4:18 5:3597 6:64
7:5 8:1488 9:1 11:36 12:1760 13:358
14:2386 15:77 16:15 17:309 18:94 20:118
22:188 23:4356 24:2382 25:2 27:2384 31:2225
32:112 34:3 35:39 36:1141 37:3657 38:2044
39:484 40:150 41:3869 42:904 43:2100 44:237
45:14972 46:3627 47:320 49:1611 50:1707 51:92
52:1206 54:216 55:775 56:6 57:57 58:1703
59:1166 60:823 61:2363 62:2213 63:1971 64:5261
65:2405 66:5171 67:2940 68:1174 69:4101 70:1404
71:687 72:3246 74:2587 75:1476 76:688 77:2011
78:3774 79:2227 80:1803 81:1630 82:1305 83:1104
84:1259 85:3345 86:650 87:1797 88:2855 89:3023
90:407 91:7266 92:1651 93:2524 94:2946 95:4452
96:1224 97:345 98:983 99:978 100:90 101:1067
102:1299 103:25412 104:3668 105:419 106:722 107:2213
108:677 109:3883 110:2003 111:2409 112:1773 113:1682
114:1440 115:1870 116:1895 117:2192 118:2320 119:1933
120:942 121:1085 122:2219 123:2177 124:1621 125:2105
128:1350 129:1197 130:807 131:2021 132:762 133:355
134:1546 135:288 136:715 137:902 138:2287 139:1161
140:743 141:1167 142:1057 143:1258 144:1225 145:325
146:1390 147:1243 148:2205 149:1262 150:701 151:1205
152:1551 153:386 154:2251 155:1328 156:1453 157:1154
158:929 159:2055 160:2067 161:1118 162:3223 163:974
164:1426 165:1324 166:612 167:1763 168:3524 169:654
170:4338 171:757 172:2080 173:2958 174:978 175:1075
176:2966 177:4367 178:2881 179:1906 180:2271 181:2619
182:3196 183:1702 184:2464 185:17892 186:4160 187:3116
188:3310 189:2773 190:8997 191:1454 192:10659 193:7918
194:6501 195:4662 196:2955 197:2349 198:6034 199:5994
200:7406 201:5345 202:10532 203:10080 204:4644 205:3290
206:3436 207:3321 208:3997 209:4619 210:4234 211:2168
212:3650 213:3283 214:1210 215:61 216:6178 217:2524
218:1021 219:696 220:2064 221:940 222:984 223:1748
End of report
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