IPv4 R&E Routing Table Report 23:05 GMT Wed 11 Jun, 2025 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 984121 Prefixes after maximum aggregation (per Origin AS): 380159 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 482269 Number of IPv4 prefixes with a valid ROA: 548414 Number of IPv4 prefixes with an invalid ROA: 1506 Number of IPv4 prefixes with no ROA: 434201 Total ASes present in the Internet Routing Table: 76849 Prefixes per ASN: 12.81 Origin-only ASes present in the Internet Routing Table: 65868 Origin ASes announcing only one prefix: 26868 Transit ASes present in the Internet Routing Table: 10981 Transit-only ASes present in the Internet Routing Table: 551 Paths with bogon ASNs present in the IPv4 Routing Table: 31 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 73 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1190 Number of instances of unregistered ASNs: 1231 Number of 32-bit ASNs allocated by the RIRs: 46620 Number of 32-bit ASNs visible in the Routing Table: 38350 Prefixes from 32-bit ASNs in the Routing Table: 204185 Number of bogon 32-bit ASNs visible in the Routing Table: 106 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 446 Number of addresses announced to Internet: 3110299392 Equivalent to 185 /8s, 99 /16s and 103 /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: 321740 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 259032 Total APNIC prefixes after maximum aggregation: 77187 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 250456 Unique aggregates announced from the APNIC address blocks: 104268 APNIC Region origin ASes present in the Internet Routing Table: 14592 APNIC Prefixes per ASN: 17.16 APNIC Region origin ASes announcing only one prefix: 4419 APNIC Region transit ASes present in the Internet Routing Table: 1968 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10141 Number of APNIC addresses announced to Internet: 748766464 Equivalent to 44 /8s, 161 /16s and 69 /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: 289135 Total ARIN prefixes after maximum aggregation: 131082 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 290937 Unique aggregates announced from the ARIN address blocks: 139513 ARIN Region origin ASes present in the Internet Routing Table: 19203 ARIN Prefixes per ASN: 15.15 ARIN Region origin ASes announcing only one prefix: 7027 ARIN Region transit ASes present in the Internet Routing Table: 1927 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5225 Number of ARIN addresses announced to Internet: 1353076736 Equivalent to 80 /8s, 166 /16s and 80 /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: 274824 Total RIPE prefixes after maximum aggregation: 134754 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 273388 Unique aggregates announced from the RIPE address blocks: 175660 RIPE Region origin ASes present in the Internet Routing Table: 28950 RIPE Prefixes per ASN: 9.44 RIPE Region origin ASes announcing only one prefix: 12072 RIPE Region transit ASes present in the Internet Routing Table: 4008 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 73 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12497 Number of RIPE addresses announced to Internet: 731373312 Equivalent to 43 /8s, 151 /16s and 223 /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: 124320 Total LACNIC prefixes after maximum aggregation: 29610 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 120627 Unique aggregates announced from the LACNIC address blocks: 48918 LACNIC Region origin ASes present in the Internet Routing Table: 11256 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2657 LACNIC Region transit ASes present in the Internet Routing Table: 2509 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 71 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9204 Number of LACNIC addresses announced to Internet: 171948288 Equivalent to 10 /8s, 63 /16s and 185 /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: 35620 Total AfriNIC prefixes after maximum aggregation: 6749 AfriNIC Deaggregation factor: 5.28 Prefixes being announced from the AfriNIC address blocks: 48267 Unique aggregates announced from the AfriNIC address blocks: 13510 AfriNIC Region origin ASes present in the Internet Routing Table: 1917 AfriNIC Prefixes per ASN: 25.18 AfriNIC Region origin ASes announcing only one prefix: 693 AfriNIC Region transit ASes present in the Internet Routing Table: 369 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1283 Number of AfriNIC addresses announced to Internet: 104924160 Equivalent to 6 /8s, 65 /16s and 4 /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 11077 8758 100 CHINAMOBILE-CN China Mobile Communication 7545 6172 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4496 347 26 FPT-AS-AP FPT Telecom Company, VN 9498 4407 534 307 BBIL-AP BHARTI Airtel Ltd., IN 7552 3929 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3712 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3277 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2885 855 531 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2181 434 193 TATACOMM-AS TATA Communications formerly 45090 2173 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13706 40939 5235 AMAZON-02, US 11492 4762 316 595 CABLEONE, US 7155 3863 286 85 VIASAT-SP-BACKBONE, US 6327 3631 1320 81 SHAW, CA 174 3577 8745 883 COGENT-174, US 22773 3346 3033 169 ASN-CXA-ALL-CCI-22773-RDC, US 749 3229 54783 2480 DNIC-AS-00749, US 396982 3185 3854 426 GOOGLE-CLOUD-PLATFORM, US 16625 3006 1252 2223 AKAMAI-AS, US 36352 2813 230 856 AS-COLOCROSSING, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7701 1714 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3943 3395 123 AKAMAI-ASN1, NL 9009 3881 353 2082 M247, RO 12389 3105 2304 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2402 361 578 TELLCOM-AS, TR 212238 2261 164 1650 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1576 1852 14 TE-AS TE-AS, EG 8551 1414 366 39 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12204 3256 581 UNINET, MX 10620 3499 480 1017 Telmex Colombia S.A., CO 13999 2492 541 361 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1371 2436 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1200 371 22 Telefonica del Peru S.A.A., PE 11664 1196 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1061 67 374 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1041 373 162 Axtel, S.A.B. de C.V., MX Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1820 644 27 RAYA-AS, EG 24863 1633 389 16 LINKdotNET-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1248 553 105 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1066 523 47 Vodafone-, EG 20011 952 183 318 INTERNET-SOLUTIONS, ZA 36914 563 82 3 KENET-AS, KE 15399 543 57 57 WANANCHI-, KE Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13706 40939 5235 AMAZON-02, US 8151 12204 3256 581 UNINET, MX 9808 11077 8758 100 CHINAMOBILE-CN China Mobile Communication 12479 7701 1714 148 UNI2-AS, ES 7545 6172 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4762 316 595 CABLEONE, US 18403 4496 347 26 FPT-AS-AP FPT Telecom Company, VN 9498 4407 534 307 BBIL-AP BHARTI Airtel Ltd., IN 20940 3943 3395 123 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 12204 11623 UNINET, MX 9808 11077 10977 CHINAMOBILE-CN China Mobile Communications Grou 12479 7701 7553 UNI2-AS, ES 7545 6172 5523 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4496 4470 FPT-AS-AP FPT Telecom Company, VN 11492 4762 4167 CABLEONE, US 9498 4407 4100 BBIL-AP BHARTI Airtel Ltd., IN 7552 3929 3903 VIETEL-AS-AP Viettel Group, VN 20940 3943 3820 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/Singapore/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 398728 UNALLOCATED 8.10.134.0/24 174 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 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 394804 UNALLOCATED 8.33.225.0/24 3356 LEVEL3, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS 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: 3491 CONSOLE-CONNECT-ASN, 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, US Complete listing at https://bgp.nsrc.org/REN/Singapore/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 /12:299 /13:581 /14:1210 /15:2140 /16:13875 /17:8214 /18:13616 /19:24459 /20:43911 /21:51546 /22:111876 /23:102282 /24:609949 /25:0 /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 6618 7701 UNI2-AS, ES 8151 6410 12204 UNINET, MX 11492 3559 4762 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3427 3631 SHAW, CA 7155 2822 3863 VIASAT-SP-BACKBONE, US 22773 2494 3346 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2375 13706 AMAZON-02, US 30036 2243 2584 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2186 3499 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2381 2:1481 3:819 4:10 5:4720 6:162 7:6 8:1573 9:1 11:172 12:1350 13:455 14:2520 15:358 16:285 17:376 18:922 20:545 21:4 22:188 23:7561 24:2826 25:2 27:2767 29:19 31:3295 32:36 33:1 34:83 35:255 36:3092 37:4597 38:9327 39:910 40:172 41:4192 42:2007 43:2638 44:377 45:18645 46:5094 47:323 49:1942 50:1880 51:592 52:1569 54:328 55:1087 56:11 57:265 58:2209 59:1286 60:1171 61:2836 62:2934 63:1795 64:5453 65:2178 66:4618 67:3052 68:1123 69:3848 70:1074 71:635 72:2842 74:2784 75:1507 76:620 77:2713 78:1889 79:1721 80:2223 81:2051 82:3148 83:1446 84:1867 85:3453 86:1079 87:2136 88:1298 89:4426 90:772 91:8396 92:2725 93:2909 94:4032 95:4343 96:1421 97:311 98:979 99:698 100:73 101:1423 102:3845 103:32752 104:5136 105:767 106:1034 107:2667 108:1236 109:4085 110:2246 111:3277 112:2130 113:1815 114:1993 115:2116 116:2078 117:2529 118:2889 119:1923 120:2000 121:1376 122:2771 123:2180 124:1629 125:2905 126:91 128:1578 129:962 130:1294 131:1998 132:773 133:449 134:1527 135:334 136:1324 137:1120 138:2835 139:1599 140:1603 141:1510 142:1897 143:1836 144:1144 145:540 146:2171 147:2111 148:2719 149:2889 150:1270 151:1973 152:2094 153:512 154:7489 155:1740 156:3021 157:1924 158:1321 159:2490 160:3607 161:1851 162:3836 163:2197 164:1860 165:1980 166:1493 167:1962 168:4013 169:792 170:5122 171:1023 172:4452 173:3320 174:919 175:1307 176:3707 177:4694 178:3719 179:2299 180:2752 181:4087 182:3445 183:2183 184:2063 185:21583 186:5193 187:4521 188:4254 189:4279 190:9602 191:1490 192:11286 193:9473 194:7822 195:5548 196:3281 197:3644 198:6072 199:8528 200:8096 201:6375 202:10279 203:10651 204:4545 205:3620 206:4452 207:3504 208:4235 209:5117 210:4564 211:2534 212:4573 213:3743 214:1036 215:48 216:6763 217:3163 218:1355 219:394 220:2089 221:1134 222:723 223:2462 End of report