IPv4 R&E Routing Table Report 23:05 GMT Sun 30 Mar, 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: 974933 Prefixes after maximum aggregation (per Origin AS): 374157 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 476579 Number of IPv4 prefixes with a valid ROA: 536615 Number of IPv4 prefixes with an invalid ROA: 672 Number of IPv4 prefixes with no ROA: 437646 Total ASes present in the Internet Routing Table: 76558 Prefixes per ASN: 12.73 Origin-only ASes present in the Internet Routing Table: 65714 Origin ASes announcing only one prefix: 26874 Transit ASes present in the Internet Routing Table: 10844 Transit-only ASes present in the Internet Routing Table: 537 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1013 Number of instances of unregistered ASNs: 1018 Number of 32-bit ASNs allocated by the RIRs: 46117 Number of 32-bit ASNs visible in the Routing Table: 37956 Prefixes from 32-bit ASNs in the Routing Table: 199622 Number of bogon 32-bit ASNs visible in the Routing Table: 16 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 466 Number of addresses announced to Internet: 3107346688 Equivalent to 185 /8s, 54 /16s and 89 /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: 320331 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255028 Total APNIC prefixes after maximum aggregation: 76281 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 246756 Unique aggregates announced from the APNIC address blocks: 102675 APNIC Region origin ASes present in the Internet Routing Table: 14495 APNIC Prefixes per ASN: 17.02 APNIC Region origin ASes announcing only one prefix: 4422 APNIC Region transit ASes present in the Internet Routing Table: 1946 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 59 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10031 Number of APNIC addresses announced to Internet: 748673536 Equivalent to 44 /8s, 159 /16s and 218 /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: 288255 Total ARIN prefixes after maximum aggregation: 128449 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 288756 Unique aggregates announced from the ARIN address blocks: 137199 ARIN Region origin ASes present in the Internet Routing Table: 19202 ARIN Prefixes per ASN: 15.04 ARIN Region origin ASes announcing only one prefix: 7038 ARIN Region transit ASes present in the Internet Routing Table: 1903 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5161 Number of ARIN addresses announced to Internet: 1349679104 Equivalent to 80 /8s, 114 /16s and 120 /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: 272249 Total RIPE prefixes after maximum aggregation: 132907 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 270679 Unique aggregates announced from the RIPE address blocks: 173859 RIPE Region origin ASes present in the Internet Routing Table: 28862 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12054 RIPE Region transit ASes present in the Internet Routing Table: 3972 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12340 Number of RIPE addresses announced to Internet: 732226816 Equivalent to 43 /8s, 164 /16s and 229 /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: 123365 Total LACNIC prefixes after maximum aggregation: 29192 LACNIC Deaggregation factor: 4.23 Prefixes being announced from the LACNIC address blocks: 120068 Unique aggregates announced from the LACNIC address blocks: 48824 LACNIC Region origin ASes present in the Internet Routing Table: 11200 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2667 LACNIC Region transit ASes present in the Internet Routing Table: 2456 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9156 Number of LACNIC addresses announced to Internet: 171654400 Equivalent to 10 /8s, 59 /16s and 61 /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: 35023 Total AfriNIC prefixes after maximum aggregation: 6704 AfriNIC Deaggregation factor: 5.22 Prefixes being announced from the AfriNIC address blocks: 48208 Unique aggregates announced from the AfriNIC address blocks: 13623 AfriNIC Region origin ASes present in the Internet Routing Table: 1900 AfriNIC Prefixes per ASN: 25.37 AfriNIC Region origin ASes announcing only one prefix: 693 AfriNIC Region transit ASes present in the Internet Routing Table: 375 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1268 Number of AfriNIC addresses announced to Internet: 104878336 Equivalent to 6 /8s, 64 /16s and 81 /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 10308 8753 89 CHINAMOBILE-CN China Mobile Communication 7545 6220 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4247 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4224 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3916 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3673 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3267 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2843 848 537 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2205 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2175 434 197 TATACOMM-AS TATA Communications formerly 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 12952 39643 3991 AMAZON-02, US 11492 4676 310 586 CABLEONE, US 7155 4173 286 83 VIASAT-SP-BACKBONE, US 174 3634 8766 960 COGENT-174, US 6327 3616 1320 81 SHAW, CA 22773 3380 3036 181 ASN-CXA-ALL-CCI-22773-RDC, US 749 3255 54879 2506 DNIC-AS-00749, US 16625 2983 1250 2201 AKAMAI-AS, US 396982 2946 3649 460 GOOGLE-CLOUD-PLATFORM, US 36352 2582 213 794 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 7722 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3885 3395 125 AKAMAI-ASN1, NL 9009 3771 325 1961 M247, RO 12389 3035 2303 888 ROSTELECOM-AS, RU 34984 2365 360 583 TELLCOM-AS, TR 212238 2071 147 1528 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1521 1852 14 TE-AS TE-AS, EG 62240 1491 98 749 CLOUVIDER Clouvider - Global ASN, GB 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 11899 3243 582 UNINET, MX 10620 3522 486 971 Telmex Colombia S.A., CO 13999 2509 539 367 Mega Cable, S.A. de C.V., MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1332 783 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1192 371 21 Telefonica del Peru S.A.A., PE 11664 1163 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1051 67 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1049 374 163 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 1703 599 30 RAYA-AS, EG 24863 1620 389 18 LINKdotNET-AS, EG 29571 1567 102 23 ORANGE-COTE-IVOIRE, CI 36992 1428 1518 287 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1006 521 42 Vodafone-, EG 20011 980 183 284 INTERNET-SOLUTIONS, ZA 37069 914 1084 18 MOBINIL, EG 6713 560 1861 35 IAM-AS, MA 36914 543 82 3 KENET-AS, 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 12952 39643 3991 AMAZON-02, US 8151 11899 3243 582 UNINET, MX 9808 10308 8753 89 CHINAMOBILE-CN China Mobile Communication 12479 7722 1714 145 UNI2-AS, ES 7545 6220 843 657 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4676 310 586 CABLEONE, US 9498 4247 530 276 BBIL-AP BHARTI Airtel Ltd., IN 18403 4224 347 25 FPT-AS-AP FPT Telecom Company, VN 7155 4173 286 83 VIASAT-SP-BACKBONE, US 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 11899 11317 UNINET, MX 9808 10308 10219 CHINAMOBILE-CN China Mobile Communications Grou 12479 7722 7577 UNI2-AS, ES 7545 6220 5563 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4224 4199 FPT-AS-AP FPT Telecom Company, VN 11492 4676 4090 CABLEONE, US 7155 4173 4090 VIASAT-SP-BACKBONE, US 9498 4247 3971 BBIL-AP BHARTI Airtel Ltd., IN 7552 3916 3890 VIETEL-AS-AP Viettel Group, VN 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 212032 UNALLOCATED 5.59.105.0/24 35168 TNS-PLUS-CORE, KZ 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 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 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 /9:16 /10:41 /11:93 /12:302 /13:581 /14:1217 /15:2143 /16:13923 /17:8242 /18:13657 /19:24484 /20:43590 /21:51551 /22:111677 /23:100889 /24:602511 /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 6654 7722 UNI2-AS, ES 8151 6099 11899 UNINET, MX 11492 3529 4676 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3411 3616 SHAW, CA 7155 3120 4173 VIASAT-SP-BACKBONE, US 22773 2516 3380 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2332 12952 AMAZON-02, US 30036 2210 2550 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2184 3522 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) ---------------------------------------------- 1:2334 2:1505 3:601 4:10 5:4576 6:163 7:6 8:1552 9:1 11:172 12:1372 13:352 14:2514 15:351 16:279 17:361 18:912 20:446 21:4 22:188 23:7300 24:3021 25:2 27:2718 29:19 31:3227 32:37 34:83 35:203 36:2397 37:4669 38:8910 39:900 40:154 41:4214 42:1910 43:2551 44:358 45:18430 46:4922 47:288 49:1984 50:1895 51:590 52:1554 54:301 55:878 56:11 57:249 58:2189 59:1241 60:1171 61:2814 62:2912 63:1827 64:5481 65:2180 66:4574 67:3022 68:1118 69:3971 70:1113 71:613 72:2843 74:2797 75:1660 76:612 77:2706 78:1856 79:1727 80:2192 81:2016 82:2993 83:1415 84:1815 85:3368 86:1042 87:2148 88:1278 89:4326 90:778 91:8307 92:2794 93:2876 94:4010 95:4285 96:1422 97:313 98:991 99:740 100:71 101:1398 102:3705 103:32151 104:4804 105:749 106:993 107:2592 108:1202 109:4078 110:2229 111:3327 112:2038 113:1790 114:1958 115:2119 116:2030 117:2734 118:2843 119:1938 120:1870 121:1358 122:2732 123:2165 124:1609 125:2851 126:88 128:1547 129:948 130:1267 131:1883 132:769 133:451 134:1528 135:329 136:1277 137:1098 138:2891 139:1618 140:1556 141:1484 142:1824 143:1654 144:1058 145:515 146:2146 147:2096 148:2635 149:2890 150:1250 151:2047 152:2098 153:504 154:7886 155:1619 156:3282 157:1901 158:1266 159:2427 160:3553 161:1926 162:3710 163:1955 164:1691 165:2202 166:1420 167:1886 168:4023 169:793 170:5057 171:1002 172:4454 173:3224 174:909 175:1283 176:3690 177:4730 178:3815 179:2359 180:2572 181:4053 182:3372 183:2033 184:2289 185:21477 186:5084 187:4409 188:4201 189:4217 190:9619 191:1521 192:11137 193:9409 194:7779 195:5515 196:3262 197:3699 198:6060 199:8401 200:8044 201:6287 202:10326 203:10504 204:4522 205:3615 206:4567 207:3437 208:4179 209:5169 210:4498 211:2522 212:4488 213:3749 214:1041 215:48 216:6576 217:3084 218:1326 219:377 220:2086 221:1070 222:711 223:2318 End of report