[cmNOG] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora at apnic.net
Fri Apr 11 18:02:20 UTC 2025
This is an automated weekly mailing describing the state of the Global
IPv4 Routing Table as seen from APNIC's router in Japan.
The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
UKNOF, 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 https://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.
IPv4 Routing Table Report 04:00 +10GMT Sat 12 Apr, 2025
IPv4 BGP Table (Global) as seen at Japan.
Report Website: https://thyme.apnic.net
Detailed Analysis: https://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 979819
Prefixes after maximum aggregation (per Origin AS): 376265
Deaggregation factor: 2.60
Unique aggregates announced (without unneeded subnets): 477215
Number of IPv4 prefixes with a valid ROA: 535000
Number of IPv4 prefixes with an invalid ROA: 1221
Number of IPv4 prefixes with no ROA: 443598
Total ASes present in the Internet Routing Table: 76835
Prefixes per ASN: 12.75
Origin-only ASes present in the Internet Routing Table: 65777
Origin ASes announcing only one prefix: 26884
Transit ASes present in the Internet Routing Table: 11058
Transit-only ASes present in the Internet Routing Table: 547
Average AS path length visible in the Internet Routing Table: 5.2
Max AS path length visible: 65
Max AS path prepend of ASN ( 37447) 57
Prefixes from unregistered ASNs in the Routing Table: 1090
Number of instances of unregistered ASNs: 1096
Number of 32-bit ASNs allocated by the RIRs: 46167
Number of 32-bit ASNs visible in the Routing Table: 38127
Prefixes from 32-bit ASNs in the Routing Table: 200829
Number of bogon 32-bit ASNs visible in the Routing Table: 38
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 460
Number of addresses announced to Internet: 3107618688
Equivalent to 185 /8s, 58 /16s and 127 /24s
Percentage of available address space announced: 83.9
Percentage of allocated address space announced: 83.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 321865
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 257024
Total APNIC prefixes after maximum aggregation: 77125
APNIC Deaggregation factor: 3.33
Prefixes being announced from the APNIC address blocks: 248806
Unique aggregates announced from the APNIC address blocks: 102916
APNIC Region origin ASes present in the Internet Routing Table: 14619
APNIC Prefixes per ASN: 17.02
APNIC Region origin ASes announcing only one prefix: 4450
APNIC Region transit ASes present in the Internet Routing Table: 1967
Average APNIC Region AS path length visible: 5.5
Max APNIC Region AS path length visible: 56
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10096
Number of APNIC addresses announced to Internet: 749229056
Equivalent to 44 /8s, 168 /16s and 84 /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, 131072-155961
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: 289398
Total ARIN prefixes after maximum aggregation: 129133
ARIN Deaggregation factor: 2.24
Prefixes being announced from the ARIN address blocks: 290369
Unique aggregates announced from the ARIN address blocks: 137599
ARIN Region origin ASes present in the Internet Routing Table: 19247
ARIN Prefixes per ASN: 15.09
ARIN Region origin ASes announcing only one prefix: 7022
ARIN Region transit ASes present in the Internet Routing Table: 1993
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 5186
Number of ARIN addresses announced to Internet: 1349620736
Equivalent to 80 /8s, 113 /16s and 148 /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, 393216-402332
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, 45/8, 47/8, 48/8, 50/8, 52/8,
54/8, 55/8, 56/8, 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: 273308
Total RIPE prefixes after maximum aggregation: 133303
RIPE Deaggregation factor: 2.05
Prefixes being announced from the RIPE address blocks: 271132
Unique aggregates announced from the RIPE address blocks: 173631
RIPE Region origin ASes present in the Internet Routing Table: 28897
RIPE Prefixes per ASN: 9.38
RIPE Region origin ASes announcing only one prefix: 12050
RIPE Region transit ASes present in the Internet Routing Table: 4010
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 45
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12383
Number of RIPE addresses announced to Internet: 731708288
Equivalent to 43 /8s, 156 /16s and 251 /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
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
53/8, 57/8, 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: 123811
Total LACNIC prefixes after maximum aggregation: 29299
LACNIC Deaggregation factor: 4.23
Prefixes being announced from the LACNIC address blocks: 120473
Unique aggregates announced from the LACNIC address blocks: 48867
LACNIC Region origin ASes present in the Internet Routing Table: 11236
LACNIC Prefixes per ASN: 10.72
LACNIC Region origin ASes announcing only one prefix: 2668
LACNIC Region transit ASes present in the Internet Routing Table: 2506
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 56
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9188
Number of LACNIC addresses announced to Internet: 171772416
Equivalent to 10 /8s, 61 /16s and 10 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + 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: 35188
Total AfriNIC prefixes after maximum aggregation: 6754
AfriNIC Deaggregation factor: 5.21
Prefixes being announced from the AfriNIC address blocks: 48579
Unique aggregates announced from the AfriNIC address blocks: 13808
AfriNIC Region origin ASes present in the Internet Routing Table: 1911
AfriNIC Prefixes per ASN: 25.42
AfriNIC Region origin ASes announcing only one prefix: 694
AfriNIC Region transit ASes present in the Internet Routing Table: 380
Average AfriNIC Region AS path length visible: 6.0
Max AfriNIC Region AS path length visible: 65
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1274
Number of AfriNIC addresses announced to Internet: 105051904
Equivalent to 6 /8s, 66 /16s and 247 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 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 10314 8754 94 CHINAMOBILE-CN China Mobile Communication
7545 6214 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4780 4192 76 ERX-CERNET-BKB China Education and Resear
9498 4313 530 278 BBIL-AP BHARTI Airtel Ltd., IN
7552 3920 1332 26 VIETEL-AS-AP Viettel Group, VN
7713 3675 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3277 1869 102 VNPT-AS-VN VNPT Corp, VN
24560 2856 850 539 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
4766 2382 11522 625 KIXS-AS-KR Korea Telecom, KR
45090 2205 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer
Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13165 39690 4081 AMAZON-02, US
11492 4693 311 586 CABLEONE, US
7155 3829 286 85 VIASAT-SP-BACKBONE, US
6327 3622 1320 81 SHAW, CA
174 3420 8765 951 COGENT-174, US
22773 3396 3033 182 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
16625 2978 1246 2203 AKAMAI-AS, US
396982 2951 3649 468 GOOGLE-CLOUD-PLATFORM, US
36352 2644 218 802 AS-COLOCROSSING, US
Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
12479 7706 1714 145 UNI2-AS, ES
39891 4797 293 62 ALJAWWALSTC-AS, SA
20940 3915 3395 129 AKAMAI-ASN1, NL
9009 3762 325 1956 M247, RO
12389 3077 2303 888 ROSTELECOM-AS, RU
34984 2363 360 581 TELLCOM-AS, TR
212238 2090 148 1540 CDNEXT, GB
8452 1637 1852 14 TE-AS TE-AS, EG
13188 1606 100 34 TRIOLAN, UA
62240 1481 98 745 CLOUVIDER Clouvider - Global ASN, GB
Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 11934 3245 583 UNINET, MX
10620 3536 487 974 Telmex Colombia S.A., CO
13999 2512 539 364 Mega Cable, S.A. de C.V., MX
11830 1993 369 64 Instituto Costarricense de Electricidad y
28573 1357 2438 262 Claro NXT Telecomunicacoes Ltda, BR
3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1192 371 22 Telefonica del Peru S.A.A., PE
11664 1180 278 33 Techtel LMDS Comunicaciones Interactivas
22884 1050 67 378 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
6503 1043 374 163 Axtel, S.A.B. de C.V., MX
Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24835 1702 599 30 RAYA-AS, EG
24863 1643 389 16 LINKdotNET-AS, EG
29571 1580 102 22 ORANGE-COTE-IVOIRE, CI
36992 1430 1518 287 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
36935 1028 523 45 Vodafone-, EG
20011 981 185 285 INTERNET-SOLUTIONS, ZA
37069 932 1099 15 MOBINIL, EG
6713 561 1861 35 IAM-AS, MA
36914 545 82 3 KENET-AS, KE
Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 13165 39690 4081 AMAZON-02, US
8151 11934 3245 583 UNINET, MX
9808 10314 8754 94 CHINAMOBILE-CN China Mobile Communication
12479 7706 1714 145 UNI2-AS, ES
7545 6214 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4797 293 62 ALJAWWALSTC-AS, SA
4538 4780 4192 76 ERX-CERNET-BKB China Education and Resear
11492 4693 311 586 CABLEONE, US
9498 4313 530 278 BBIL-AP BHARTI Airtel Ltd., IN
7552 3920 1332 26 VIETEL-AS-AP Viettel Group, VN
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
8151 11934 11351 UNINET, MX
9808 10314 10220 CHINAMOBILE-CN China Mobile Communications Grou
12479 7706 7561 UNI2-AS, ES
7545 6214 5558 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 4797 4735 ALJAWWALSTC-AS, SA
4538 4780 4704 ERX-CERNET-BKB China Education and Research Net
11492 4693 4107 CABLEONE, US
9498 4313 4035 BBIL-AP BHARTI Airtel Ltd., IN
7552 3920 3894 VIETEL-AS-AP Viettel Group, VN
20940 3915 3786 AKAMAI-ASN1, NL
Complete listing at https://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US
12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US
393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US
396894 UNALLOCATED 8.28.201.0/24 46887 CROWNCASTLE-AS46887, US
394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US
54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
Complete listing at https://thyme.apnic.net/current/data-badAS
Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 6939 HURRICANE, US
Complete listing at https://thyme.apnic.net/current/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US
14.192.20.0/22 Transit: 6939 HURRICANE, US
23.137.68.0/24 Origin: 63129 AIRRABBIT-NETWORK, US
23.137.68.0/24 Transit: 6939 HURRICANE, US
23.137.100.0/24 Origin: 401616 PNL, US
23.137.100.0/24 Transit: 213622 BAREMETAL, AE
23.140.216.0/24 Origin: 27176 DATAWAGON, US
23.140.216.0/24 Transit: 20278 NEXEON, US
23.141.0.0/24 Origin: 395350 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
Complete listing at https://thyme.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 /9:16 /10:41 /11:93 /12:301
/13:582 /14:1216 /15:2142 /16:13944 /17:8343 /18:13826
/19:24822 /20:44541 /21:52270 /22:112495 /23:101738 /24:602633
/25:800 /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 6628 7706 UNI2-AS, ES
8151 6139 11934 UNINET, MX
11492 3531 4693 CABLEONE, US
39891 3489 4797 ALJAWWALSTC-AS, SA
6327 3417 3622 SHAW, CA
7155 2787 3829 VIASAT-SP-BACKBONE, US
22773 2534 3396 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2336 13165 AMAZON-02, US
30036 2213 2553 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2198 3536 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1702 2:1518 3:614 4:10 5:4591 6:163
7:6 8:1551 9:1 11:172 12:1370 13:351
14:2548 15:352 16:279 17:367 18:923 20:480
21:4 22:188 23:7405 24:2844 25:2 27:2694
29:19 31:3233 32:40 34:80 35:204 36:2412
37:4668 38:8856 39:897 40:160 41:4212 42:950
43:2552 44:371 45:18511 46:4967 47:287 49:1927
50:1899 51:591 52:1553 54:299 55:873 56:11
57:249 58:2133 59:1359 60:1171 61:2793 62:2911
63:1833 64:5498 65:2172 66:4650 67:3066 68:1120
69:3978 70:1067 71:616 72:2836 74:2804 75:1604
76:617 77:2738 78:1872 79:1740 80:2211 81:2022
82:3113 83:1426 84:1839 85:3390 86:1041 87:2405
88:1285 89:4325 90:776 91:8319 92:2784 93:2893
94:4076 95:4309 96:1445 97:313 98:996 99:643
100:71 101:1171 102:3733 103:32232 104:4762 105:755
106:990 107:2615 108:1208 109:4097 110:2238 111:3371
112:2046 113:1538 114:1970 115:2149 116:2042 117:2735
118:2371 119:1925 120:1890 121:1420 122:2761 123:2172
124:1618 125:2887 126:91 128:1566 129:968 130:1269
131:1895 132:786 133:451 134:1524 135:332 136:1303
137:1155 138:2887 139:1600 140:1583 141:1483 142:1845
143:1635 144:1077 145:515 146:2165 147:2101 148:2657
149:2906 150:1243 151:1737 152:2104 153:503 154:7913
155:1638 156:3217 157:1881 158:1278 159:2445 160:3549
161:1895 162:3725 163:2021 164:1701 165:2206 166:1455
167:1883 168:4055 169:790 170:5092 171:1004 172:4456
173:3226 174:911 175:1293 176:3681 177:4716 178:3784
179:2303 180:2587 181:4062 182:3371 183:1816 184:2137
185:21487 186:5096 187:4427 188:4191 189:4194 190:9627
191:1462 192:11221 193:9428 194:7787 195:5519 196:3284
197:3693 198:6185 199:8455 200:8203 201:6288 202:10563
203:10541 204:4551 205:3664 206:4629 207:3564 208:4197
209:5194 210:4809 211:2633 212:4523 213:3772 214:1037
215:48 216:6610 217:3097 218:1385 219:538 220:2088
221:1069 222:848 223:2342
End of report
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