[lacnog] Weekly Global IPv4 Routing Table Report
Routing Table Analysis Role Account
cscora en apnic.net
Vie Jul 25 15:02:25 -03 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 en lists.apnic.net.
For historical data, please see https://thyme.apnic.net.
If you have any comments please contact Philip Smith <pfsinoz en gmail.com>.
IPv4 Routing Table Report 04:00 +10GMT Sat 26 Jul, 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: 991858
Prefixes after maximum aggregation (per Origin AS): 384350
Deaggregation factor: 2.58
Unique aggregates announced (without unneeded subnets): 487900
Number of IPv4 prefixes with a valid ROA: 552079
Number of IPv4 prefixes with an invalid ROA: 1476
Number of IPv4 prefixes with no ROA: 438303
Total ASes present in the Internet Routing Table: 77133
Prefixes per ASN: 12.86
Origin-only ASes present in the Internet Routing Table: 65995
Origin ASes announcing only one prefix: 26973
Transit ASes present in the Internet Routing Table: 11138
Transit-only ASes present in the Internet Routing Table: 563
Average AS path length visible in the Internet Routing Table: 5.2
Max AS path length visible: 59
Max AS path prepend of ASN ( 37447) 54
Prefixes from unregistered ASNs in the Routing Table: 1139
Number of instances of unregistered ASNs: 1181
Number of 32-bit ASNs allocated by the RIRs: 46946
Number of 32-bit ASNs visible in the Routing Table: 38671
Prefixes from 32-bit ASNs in the Routing Table: 206639
Number of bogon 32-bit ASNs visible in the Routing Table: 113
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 454
Number of addresses announced to Internet: 3108124800
Equivalent to 185 /8s, 66 /16s and 56 /24s
Percentage of available address space announced: 84.0
Percentage of allocated address space announced: 84.0
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: 323780
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 263526
Total APNIC prefixes after maximum aggregation: 78675
APNIC Deaggregation factor: 3.35
Prefixes being announced from the APNIC address blocks: 254464
Unique aggregates announced from the APNIC address blocks: 105073
APNIC Region origin ASes present in the Internet Routing Table: 14765
APNIC Prefixes per ASN: 17.23
APNIC Region origin ASes announcing only one prefix: 4522
APNIC Region transit ASes present in the Internet Routing Table: 1972
Average APNIC Region AS path length visible: 5.5
Max APNIC Region AS path length visible: 36
Number of APNIC region 32-bit ASNs visible in the Routing Table: 10279
Number of APNIC addresses announced to Internet: 750146304
Equivalent to 44 /8s, 182 /16s and 83 /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: 291522
Total ARIN prefixes after maximum aggregation: 132139
ARIN Deaggregation factor: 2.21
Prefixes being announced from the ARIN address blocks: 293229
Unique aggregates announced from the ARIN address blocks: 141378
ARIN Region origin ASes present in the Internet Routing Table: 19253
ARIN Prefixes per ASN: 15.23
ARIN Region origin ASes announcing only one prefix: 7039
ARIN Region transit ASes present in the Internet Routing Table: 2001
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: 5266
Number of ARIN addresses announced to Internet: 1349388288
Equivalent to 80 /8s, 110 /16s and 8 /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: 276526
Total RIPE prefixes after maximum aggregation: 136220
RIPE Deaggregation factor: 2.03
Prefixes being announced from the RIPE address blocks: 275422
Unique aggregates announced from the RIPE address blocks: 177989
RIPE Region origin ASes present in the Internet Routing Table: 28966
RIPE Prefixes per ASN: 9.51
RIPE Region origin ASes announcing only one prefix: 12059
RIPE Region transit ASes present in the Internet Routing Table: 4036
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 49
Number of RIPE region 32-bit ASNs visible in the Routing Table: 12588
Number of RIPE addresses announced to Internet: 732187008
Equivalent to 43 /8s, 164 /16s and 73 /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: 124587
Total LACNIC prefixes after maximum aggregation: 29762
LACNIC Deaggregation factor: 4.19
Prefixes being announced from the LACNIC address blocks: 120895
Unique aggregates announced from the LACNIC address blocks: 49028
LACNIC Region origin ASes present in the Internet Routing Table: 11270
LACNIC Prefixes per ASN: 10.73
LACNIC Region origin ASes announcing only one prefix: 2654
LACNIC Region transit ASes present in the Internet Routing Table: 2544
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: 9237
Number of LACNIC addresses announced to Internet: 171117824
Equivalent to 10 /8s, 51 /16s and 13 /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: 34558
Total AfriNIC prefixes after maximum aggregation: 6792
AfriNIC Deaggregation factor: 5.09
Prefixes being announced from the AfriNIC address blocks: 47394
Unique aggregates announced from the AfriNIC address blocks: 14048
AfriNIC Region origin ASes present in the Internet Routing Table: 1937
AfriNIC Prefixes per ASN: 24.47
AfriNIC Region origin ASes announcing only one prefix: 699
AfriNIC Region transit ASes present in the Internet Routing Table: 384
Average AfriNIC Region AS path length visible: 6.1
Max AfriNIC Region AS path length visible: 59
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1301
Number of AfriNIC addresses announced to Internet: 105029376
Equivalent to 6 /8s, 66 /16s and 159 /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 12116 8762 117 CHINAMOBILE-CN China Mobile Communication
7545 6139 840 618 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4815 4192 76 ERX-CERNET-BKB China Education and Resear
9498 4468 536 312 BBIL-AP BHARTI Airtel Ltd., IN
7552 3918 1332 27 VIETEL-AS-AP Viettel Group, VN
7713 3699 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones
45899 3295 1869 102 VNPT-AS-VN VNPT Corp, VN
24560 2915 864 511 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
56046 2821 812 181 CMNET-JIANGSU-AP China Mobile communicati
4766 2311 11519 607 KIXS-AS-KR Korea Telecom, KR
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 13661 40974 5279 AMAZON-02, US
11492 4819 319 605 CABLEONE, US
7155 3855 286 85 VIASAT-SP-BACKBONE, US
6327 3637 1320 82 SHAW, CA
174 3412 8771 859 COGENT-174, US
22773 3339 3029 165 ASN-CXA-ALL-CCI-22773-RDC, US
749 3223 54766 2474 DNIC-AS-00749, US
396982 3197 3856 433 GOOGLE-CLOUD-PLATFORM, US
16625 2937 1238 2179 AKAMAI-AS, US
4155 2880 218 1730 USDA-1, 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 7595 1712 148 UNI2-AS, ES
39891 4798 293 63 ALJAWWALSTC-AS, SA
20940 3923 3395 127 AKAMAI-ASN1, NL
9009 3816 362 2132 M247, RO
12389 3123 2315 871 ROSTELECOM-AS PJSC Rostelecom. Technical
34984 2404 361 584 TELLCOM-AS, TR
212238 2323 164 1691 CDNEXT, GB
13188 1606 100 34 TRIOLAN, UA
8452 1585 1852 14 TE-AS TE-AS, EG
203020 1525 190 671 HOSTROYALE, IN
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 12311 3260 575 UNINET, MX
10620 3484 474 1024 Telmex Colombia S.A., CO
13999 2523 511 349 Mega Cable, S.A. de C.V., MX
11830 1984 369 64 Instituto Costarricense de Electricidad y
28573 1372 2435 269 Claro NXT Telecomunicacoes Ltda, BR
3816 1348 787 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
11664 1205 278 33 Techtel LMDS Comunicaciones Interactivas
6147 1188 371 22 Telefonica del Peru S.A.A., PE
22884 1067 68 369 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M
6503 1020 373 162 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 1729 660 28 RAYA-AS, EG
29571 1607 102 33 ORANGE-COTE-IVOIRE, CI
36992 1313 1489 356 ETISALAT-MISR, EG
36903 1249 554 96 MT-MPLS, MA
24863 1229 389 20 LINKdotNET-AS, EG
37069 1086 1112 11 MOBINIL, EG
36935 832 520 43 Vodafone-, EG
36914 575 82 3 KENET-AS, KE
20011 568 154 212 INTERNET-SOLUTIONS, ZA
15399 544 57 60 WANANCHI-, 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 13661 40974 5279 AMAZON-02, US
8151 12311 3260 575 UNINET, MX
9808 12116 8762 117 CHINAMOBILE-CN China Mobile Communication
12479 7595 1712 148 UNI2-AS, ES
7545 6139 840 618 TPG-INTERNET-AP TPG Telecom Limited, AU
11492 4819 319 605 CABLEONE, US
4538 4815 4192 76 ERX-CERNET-BKB China Education and Resear
39891 4798 293 63 ALJAWWALSTC-AS, SA
9498 4468 536 312 BBIL-AP BHARTI Airtel Ltd., IN
20940 3923 3395 127 AKAMAI-ASN1, NL
Complete listing at https://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 12116 11999 CHINAMOBILE-CN China Mobile Communications Grou
8151 12311 11736 UNINET, MX
12479 7595 7447 UNI2-AS, ES
7545 6139 5521 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4815 4739 ERX-CERNET-BKB China Education and Research Net
39891 4798 4735 ALJAWWALSTC-AS, SA
11492 4819 4214 CABLEONE, US
9498 4468 4156 BBIL-AP BHARTI Airtel Ltd., IN
7552 3918 3891 VIETEL-AS-AP Viettel Group, VN
20940 3923 3796 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
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
398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D
396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, 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: 21859 ZEN-ECN, US
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
23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA
23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US
23.147.224.0/24 Origin: 27392 639-DATACENTERS, US
23.147.224.0/24 Transit: 3356 LEVEL3, 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 /9:14 /10:41 /11:92 /12:298
/13:580 /14:1201 /15:2128 /16:13806 /17:8290 /18:13582
/19:24787 /20:44768 /21:52239 /22:112349 /23:102921 /24:613956
/25:790 /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 6543 7595 UNI2-AS, ES
8151 6531 12311 UNINET, MX
11492 3611 4819 CABLEONE, US
39891 3489 4798 ALJAWWALSTC-AS, SA
6327 3433 3637 SHAW, CA
7155 2814 3855 VIASAT-SP-BACKBONE, US
22773 2492 3339 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2339 13661 AMAZON-02, US
30036 2283 2624 MEDIACOM-ENTERPRISE-BUSINESS, US
10620 2195 3484 Telmex Colombia S.A., CO
Complete listing at https://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1770 2:1497 3:857 4:10 5:4709 6:163
7:6 8:1575 9:2 11:172 12:1341 13:463
14:2614 15:367 16:286 17:375 18:897 20:559
21:4 22:188 23:7740 24:2677 25:2 27:2736
29:19 31:3354 32:38 33:1 34:80 35:258
36:3853 37:4568 38:9500 39:942 40:248 41:4241
42:937 43:2677 44:374 45:18645 46:5077 47:338
49:1891 50:2012 51:589 52:1549 54:323 55:1097
56:11 57:276 58:2098 59:1357 60:1171 61:2802
62:2979 63:1793 64:5528 65:2141 66:4737 67:3096
68:1074 69:3892 70:1049 71:623 72:2856 74:2796
75:1505 76:610 77:2758 78:1899 79:1694 80:2215
81:2044 82:3184 83:1441 84:1895 85:3482 86:1092
87:2380 88:1312 89:4418 90:777 91:8402 92:2707
93:2950 94:4079 95:4398 96:1452 97:311 98:954
99:692 100:71 101:1198 102:3892 103:32207 104:5246
105:799 106:972 107:2655 108:1274 109:4189 110:2227
111:3398 112:2290 113:1576 114:1972 115:2184 116:2069
117:2620 118:2461 119:1947 120:2175 121:1384 122:2807
123:2239 124:1707 125:2904 126:91 128:1601 129:973
130:1305 131:2032 132:777 133:450 134:1585 135:351
136:1463 137:1187 138:2828 139:1579 140:1695 141:1517
142:1913 143:1937 144:1171 145:565 146:2185 147:2097
148:2721 149:2939 150:1276 151:2230 152:2072 153:524
154:7564 155:1849 156:3105 157:1938 158:1352 159:2521
160:3569 161:1889 162:3882 163:2248 164:1873 165:2377
166:1533 167:2018 168:3969 169:785 170:5127 171:1003
172:4229 173:3398 174:919 175:1318 176:3735 177:4741
178:3937 179:2294 180:2578 181:4124 182:3535 183:1950
184:2074 185:21600 186:5229 187:4673 188:4265 189:4376
190:9564 191:1497 192:11355 193:9471 194:7776 195:5601
196:3295 197:3192 198:6230 199:8627 200:8226 201:6371
202:10598 203:10610 204:4672 205:3643 206:4528 207:3640
208:4276 209:5185 210:4914 211:2704 212:4558 213:3820
214:1022 215:48 216:6746 217:3232 218:1429 219:564
220:2144 221:1197 222:874 223:2692
End of report
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