IPv4 R&E Routing Table Report 23:05 GMT Tue 03 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: 981875 Prefixes after maximum aggregation (per Origin AS): 379351 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 481966 Number of IPv4 prefixes with a valid ROA: 547403 Number of IPv4 prefixes with an invalid ROA: 650 Number of IPv4 prefixes with no ROA: 433822 Total ASes present in the Internet Routing Table: 76769 Prefixes per ASN: 12.79 Origin-only ASes present in the Internet Routing Table: 65809 Origin ASes announcing only one prefix: 26927 Transit ASes present in the Internet Routing Table: 10960 Transit-only ASes present in the Internet Routing Table: 544 Paths with bogon ASNs present in the IPv4 Routing Table: 24 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) 57 Prefixes from unregistered ASNs in the Routing Table: 1060 Number of instances of unregistered ASNs: 1064 Number of 32-bit ASNs allocated by the RIRs: 46558 Number of 32-bit ASNs visible in the Routing Table: 38273 Prefixes from 32-bit ASNs in the Routing Table: 203319 Number of bogon 32-bit ASNs visible in the Routing Table: 18 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 441 Number of addresses announced to Internet: 3110071552 Equivalent to 185 /8s, 95 /16s and 237 /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: 320619 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258652 Total APNIC prefixes after maximum aggregation: 77215 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 249630 Unique aggregates announced from the APNIC address blocks: 104232 APNIC Region origin ASes present in the Internet Routing Table: 14580 APNIC Prefixes per ASN: 17.12 APNIC Region origin ASes announcing only one prefix: 4447 APNIC Region transit ASes present in the Internet Routing Table: 1955 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10131 Number of APNIC addresses announced to Internet: 748664832 Equivalent to 44 /8s, 159 /16s and 184 /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: 288995 Total ARIN prefixes after maximum aggregation: 130918 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 290416 Unique aggregates announced from the ARIN address blocks: 139537 ARIN Region origin ASes present in the Internet Routing Table: 19205 ARIN Prefixes per ASN: 15.12 ARIN Region origin ASes announcing only one prefix: 7043 ARIN Region transit ASes present in the Internet Routing Table: 1923 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: 5213 Number of ARIN addresses announced to Internet: 1352767232 Equivalent to 80 /8s, 161 /16s and 151 /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: 273961 Total RIPE prefixes after maximum aggregation: 134349 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 272328 Unique aggregates announced from the RIPE address blocks: 175144 RIPE Region origin ASes present in the Internet Routing Table: 28914 RIPE Prefixes per ASN: 9.42 RIPE Region origin ASes announcing only one prefix: 12071 RIPE Region transit ASes present in the Internet Routing Table: 3989 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: 12448 Number of RIPE addresses announced to Internet: 731577856 Equivalent to 43 /8s, 154 /16s and 254 /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: 123698 Total LACNIC prefixes after maximum aggregation: 29528 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 120080 Unique aggregates announced from the LACNIC address blocks: 48943 LACNIC Region origin ASes present in the Internet Routing Table: 11250 LACNIC Prefixes per ASN: 10.67 LACNIC Region origin ASes announcing only one prefix: 2673 LACNIC Region transit ASes present in the Internet Routing Table: 2522 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: 9200 Number of LACNIC addresses announced to Internet: 171902720 Equivalent to 10 /8s, 63 /16s and 7 /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: 35509 Total AfriNIC prefixes after maximum aggregation: 6690 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 48980 Unique aggregates announced from the AfriNIC address blocks: 13713 AfriNIC Region origin ASes present in the Internet Routing Table: 1915 AfriNIC Prefixes per ASN: 25.58 AfriNIC Region origin ASes announcing only one prefix: 693 AfriNIC Region transit ASes present in the Internet Routing Table: 377 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 63 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1281 Number of AfriNIC addresses announced to Internet: 104962048 Equivalent to 6 /8s, 65 /16s and 152 /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 11066 8756 97 CHINAMOBILE-CN China Mobile Communication 7545 6177 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4385 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4376 534 303 BBIL-AP BHARTI Airtel Ltd., IN 7552 3923 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3694 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3275 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2878 854 528 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2179 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 13623 40827 5191 AMAZON-02, US 11492 4753 315 592 CABLEONE, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3631 1320 81 SHAW, CA 174 3476 8746 891 COGENT-174, US 22773 3348 3033 170 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 396982 3177 3853 421 GOOGLE-CLOUD-PLATFORM, US 16625 3011 1256 2225 AKAMAI-AS, US 36352 2804 229 851 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 7710 1714 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3953 3395 123 AKAMAI-ASN1, NL 9009 3906 355 2081 M247, RO 12389 3073 2306 887 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 580 TELLCOM-AS, TR 212238 2229 161 1639 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1574 1852 14 TE-AS TE-AS, EG 62240 1416 94 738 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 12166 3253 582 UNINET, MX 10620 3499 480 1017 Telmex Colombia S.A., CO 13999 2514 540 362 Mega Cable, S.A. de C.V., MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 28573 1371 2436 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1198 371 22 Telefonica del Peru S.A.A., PE 11664 1192 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1061 67 374 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1042 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 1780 644 27 RAYA-AS, EG 24863 1634 389 17 LINKdotNET-AS, EG 29571 1612 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1250 554 97 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1050 520 44 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 552 82 3 KENET-AS, KE 15399 542 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 13623 40827 5191 AMAZON-02, US 8151 12166 3253 582 UNINET, MX 9808 11066 8756 97 CHINAMOBILE-CN China Mobile Communication 12479 7710 1714 148 UNI2-AS, ES 7545 6177 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4753 315 592 CABLEONE, US 18403 4385 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4376 534 303 BBIL-AP BHARTI Airtel Ltd., IN 20940 3953 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 12166 11584 UNINET, MX 9808 11066 10969 CHINAMOBILE-CN China Mobile Communications Grou 12479 7710 7562 UNI2-AS, ES 7545 6177 5528 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4385 4360 FPT-AS-AP FPT Telecom Company, VN 11492 4753 4161 CABLEONE, US 9498 4376 4073 BBIL-AP BHARTI Airtel Ltd., IN 7552 3923 3897 VIETEL-AS-AP Viettel Group, VN 20940 3953 3830 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 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 46639 UNALLOCATED 8.38.73.0/24 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, 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 /13:580 /14:1211 /15:2141 /16:13861 /17:8210 /18:13617 /19:24458 /20:43842 /21:51452 /22:111578 /23:101852 /24:608611 /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 6626 7710 UNI2-AS, ES 8151 6366 12166 UNINET, MX 11492 3550 4753 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3427 3631 SHAW, CA 7155 2820 3861 VIASAT-SP-BACKBONE, US 22773 2495 3348 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2384 13623 AMAZON-02, US 30036 2236 2577 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 2:1499 3:804 4:9 5:4692 6:162 7:6 8:1576 9:1 11:172 12:1359 13:438 14:2520 15:359 16:285 17:375 18:918 20:544 21:4 22:188 23:7531 24:2748 25:2 27:2763 29:19 31:3266 32:36 33:1 34:83 35:252 36:3037 37:4594 38:9224 39:909 40:170 41:4216 42:1932 43:2629 44:372 45:18640 46:5071 47:318 49:1938 50:1884 51:588 52:1570 54:322 55:1052 56:11 57:260 58:2203 59:1304 60:1167 61:2826 62:2936 63:1798 64:5440 65:2183 66:4616 67:3048 68:1125 69:3826 70:1076 71:628 72:2838 74:2781 75:1504 76:614 77:2696 78:1885 79:1702 80:2203 81:2058 82:3111 83:1451 84:1851 85:3422 86:1069 87:2132 88:1295 89:4392 90:773 91:8366 92:2712 93:2910 94:4045 95:4333 96:1418 97:312 98:978 99:695 100:73 101:1408 102:3882 103:32641 104:5073 105:757 106:1036 107:2652 108:1242 109:4074 110:2251 111:3272 112:2112 113:1811 114:1977 115:2104 116:2076 117:2529 118:2877 119:1924 120:1962 121:1374 122:2764 123:2177 124:1625 125:2889 126:91 128:1575 129:959 130:1297 131:1978 132:778 133:449 134:1542 135:334 136:1352 137:1119 138:2874 139:1592 140:1596 141:1507 142:1903 143:1804 144:1155 145:525 146:2178 147:2107 148:2721 149:2889 150:1229 151:1941 152:2084 153:513 154:7949 155:1722 156:3337 157:1918 158:1326 159:2475 160:3591 161:1842 162:3776 163:2181 164:1773 165:2214 166:1486 167:1928 168:4039 169:788 170:5112 171:1007 172:4426 173:3309 174:917 175:1306 176:3694 177:4709 178:3655 179:2290 180:2741 181:4083 182:3448 183:2151 184:2053 185:21540 186:5116 187:4495 188:4240 189:4274 190:9597 191:1475 192:11245 193:9449 194:7786 195:5531 196:3261 197:3617 198:6063 199:8522 200:8078 201:6339 202:10272 203:10618 204:4538 205:3588 206:4440 207:3466 208:4223 209:5117 210:4537 211:2532 212:4562 213:3725 214:1029 215:48 216:6739 217:3134 218:1346 219:395 220:2085 221:1104 222:722 223:2411 End of report