IPv4 R&E Routing Table Report 23:05 GMT Thu 24 Apr, 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: 976159 Prefixes after maximum aggregation (per Origin AS): 376191 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 478845 Number of IPv4 prefixes with a valid ROA: 539106 Number of IPv4 prefixes with an invalid ROA: 869 Number of IPv4 prefixes with no ROA: 436184 Total ASes present in the Internet Routing Table: 76690 Prefixes per ASN: 12.73 Origin-only ASes present in the Internet Routing Table: 65788 Origin ASes announcing only one prefix: 26907 Transit ASes present in the Internet Routing Table: 10902 Transit-only ASes present in the Internet Routing Table: 531 Paths with bogon ASNs present in the IPv4 Routing Table: 19 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: 1067 Number of instances of unregistered ASNs: 1068 Number of 32-bit ASNs allocated by the RIRs: 46259 Number of 32-bit ASNs visible in the Routing Table: 38128 Prefixes from 32-bit ASNs in the Routing Table: 200628 Number of bogon 32-bit ASNs visible in the Routing Table: 12 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 463 Number of addresses announced to Internet: 3105807104 Equivalent to 185 /8s, 30 /16s and 219 /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: 319634 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255633 Total APNIC prefixes after maximum aggregation: 76590 APNIC Deaggregation factor: 3.34 Prefixes being announced from the APNIC address blocks: 247369 Unique aggregates announced from the APNIC address blocks: 103051 APNIC Region origin ASes present in the Internet Routing Table: 14572 APNIC Prefixes per ASN: 16.98 APNIC Region origin ASes announcing only one prefix: 4442 APNIC Region transit ASes present in the Internet Routing Table: 1969 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10105 Number of APNIC addresses announced to Internet: 748364800 Equivalent to 44 /8s, 155 /16s and 36 /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: 287753 Total ARIN prefixes after maximum aggregation: 129323 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 288807 Unique aggregates announced from the ARIN address blocks: 138354 ARIN Region origin ASes present in the Internet Routing Table: 19196 ARIN Prefixes per ASN: 15.05 ARIN Region origin ASes announcing only one prefix: 7042 ARIN Region transit ASes present in the Internet Routing Table: 1909 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: 5183 Number of ARIN addresses announced to Internet: 1348713472 Equivalent to 80 /8s, 99 /16s and 188 /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: 273067 Total RIPE prefixes after maximum aggregation: 133537 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 270923 Unique aggregates announced from the RIPE address blocks: 173925 RIPE Region origin ASes present in the Internet Routing Table: 28894 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12056 RIPE Region transit ASes present in the Internet Routing Table: 3972 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 47 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12399 Number of RIPE addresses announced to Internet: 731806720 Equivalent to 43 /8s, 158 /16s and 124 /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: 123292 Total LACNIC prefixes after maximum aggregation: 29354 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 119880 Unique aggregates announced from the LACNIC address blocks: 48808 LACNIC Region origin ASes present in the Internet Routing Table: 11222 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2677 LACNIC Region transit ASes present in the Internet Routing Table: 2469 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9169 Number of LACNIC addresses announced to Internet: 171699456 Equivalent to 10 /8s, 59 /16s and 237 /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: 35347 Total AfriNIC prefixes after maximum aggregation: 6749 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 48717 Unique aggregates announced from the AfriNIC address blocks: 14323 AfriNIC Region origin ASes present in the Internet Routing Table: 1908 AfriNIC Prefixes per ASN: 25.53 AfriNIC Region origin ASes announcing only one prefix: 690 AfriNIC Region transit ASes present in the Internet Routing Table: 372 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: 1272 Number of AfriNIC addresses announced to Internet: 105000704 Equivalent to 6 /8s, 66 /16s and 47 /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 10366 8754 93 CHINAMOBILE-CN China Mobile Communication 7545 6215 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4322 531 277 BBIL-AP BHARTI Airtel Ltd., IN 18403 4263 347 25 FPT-AS-AP FPT Telecom Company, VN 7552 3919 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3674 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3266 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2862 851 540 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4766 2180 11524 640 KIXS-AS-KR Korea Telecom, KR 4755 2174 435 198 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 13265 39707 4116 AMAZON-02, US 11492 4700 312 585 CABLEONE, US 7155 3859 286 85 VIASAT-SP-BACKBONE, US 174 3676 8756 924 COGENT-174, US 6327 3622 1320 81 SHAW, CA 22773 3396 3036 183 ASN-CXA-ALL-CCI-22773-RDC, US 749 3254 54879 2505 DNIC-AS-00749, US 16625 2997 1256 2214 AKAMAI-AS, US 396982 2966 3651 474 GOOGLE-CLOUD-PLATFORM, US 36352 2716 224 830 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 7720 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3940 3395 123 AKAMAI-ASN1, NL 9009 3763 325 1956 M247, RO 12389 3068 2303 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2361 360 583 TELLCOM-AS, TR 212238 2107 149 1547 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1595 1852 14 TE-AS TE-AS, EG 8551 1429 366 33 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 11975 3244 596 UNINET, MX 10620 3516 485 994 Telmex Colombia S.A., CO 13999 2510 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 1319 772 212 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1189 371 21 Telefonica del Peru S.A.A., PE 11664 1134 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1054 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://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1743 607 31 RAYA-AS, EG 24863 1650 389 16 LINKdotNET-AS, EG 29571 1589 102 22 ORANGE-COTE-IVOIRE, CI 36992 1433 1518 283 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1020 521 42 Vodafone-, EG 20011 981 185 285 INTERNET-SOLUTIONS, ZA 37069 932 1099 15 MOBINIL, EG 36914 554 82 3 KENET-AS, KE 15399 531 56 58 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 13265 39707 4116 AMAZON-02, US 8151 11975 3244 596 UNINET, MX 9808 10366 8754 93 CHINAMOBILE-CN China Mobile Communication 12479 7720 1714 145 UNI2-AS, ES 7545 6215 843 656 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 11492 4700 312 585 CABLEONE, US 9498 4322 531 277 BBIL-AP BHARTI Airtel Ltd., IN 18403 4263 347 25 FPT-AS-AP FPT Telecom Company, VN 20940 3940 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 11975 11379 UNINET, MX 9808 10366 10273 CHINAMOBILE-CN China Mobile Communications Grou 12479 7720 7575 UNI2-AS, ES 7545 6215 5559 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4263 4238 FPT-AS-AP FPT Telecom Company, VN 11492 4700 4115 CABLEONE, US 9498 4322 4045 BBIL-AP BHARTI Airtel Ltd., IN 7552 3919 3893 VIETEL-AS-AP Viettel Group, VN 20940 3940 3817 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 23.152.48.0/24 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 /12:300 /13:580 /14:1213 /15:2137 /16:13878 /17:8224 /18:13653 /19:24476 /20:43594 /21:51451 /22:111651 /23:101060 /24:603776 /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 6641 7720 UNI2-AS, ES 8151 6178 11975 UNINET, MX 11492 3531 4700 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3417 3622 SHAW, CA 7155 2818 3859 VIASAT-SP-BACKBONE, US 22773 2532 3396 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2363 13265 AMAZON-02, US 30036 2205 2545 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2182 3516 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) ---------------------------------------------- 1:2346 2:1509 3:618 4:9 5:4634 6:162 7:6 8:1555 9:1 11:172 12:1371 13:355 14:2515 15:352 16:283 17:367 18:922 20:512 21:4 22:188 23:7451 24:2751 25:2 27:2727 29:19 31:3231 32:36 34:83 35:205 36:2399 37:4672 38:9027 39:907 40:170 41:4231 42:1899 43:2563 44:377 45:18526 46:5008 47:291 49:1930 50:1885 51:591 52:1558 54:298 55:1086 56:11 57:253 58:2197 59:1303 60:1171 61:2815 62:2937 63:1818 64:5468 65:2184 66:4607 67:3055 68:1117 69:3830 70:1061 71:615 72:2830 74:2777 75:1602 76:615 77:2734 78:1876 79:1751 80:2193 81:2041 82:3174 83:1421 84:1842 85:3423 86:1047 87:2145 88:1277 89:4325 90:784 91:8324 92:2721 93:2889 94:4060 95:4339 96:1403 97:313 98:995 99:667 100:72 101:1397 102:3776 103:32217 104:4818 105:757 106:1044 107:2581 108:1202 109:4079 110:2234 111:3343 112:2048 113:1796 114:1967 115:2175 116:2035 117:2736 118:2888 119:1941 120:1878 121:1366 122:2749 123:2161 124:1606 125:2857 126:91 128:1552 129:949 130:1281 131:1890 132:769 133:450 134:1529 135:330 136:1303 137:1115 138:2883 139:1620 140:1570 141:1493 142:1902 143:1651 144:1087 145:514 146:2145 147:2096 148:2666 149:2885 150:1251 151:1758 152:2094 153:504 154:8037 155:1632 156:3205 157:1889 158:1287 159:2437 160:3583 161:1904 162:3734 163:2071 164:1701 165:2196 166:1445 167:1878 168:4037 169:786 170:5042 171:1007 172:4464 173:3238 174:905 175:1299 176:3662 177:4601 178:3698 179:2274 180:2587 181:4057 182:3377 183:2053 184:2080 185:21515 186:5066 187:4394 188:4203 189:4190 190:9628 191:1471 192:11210 193:9427 194:7759 195:5497 196:3299 197:3708 198:6069 199:8475 200:8072 201:6280 202:10333 203:10545 204:4516 205:3629 206:4573 207:3434 208:4189 209:5142 210:4559 211:2540 212:4519 213:3767 214:1029 215:48 216:6594 217:3132 218:1330 219:377 220:2087 221:1057 222:716 223:2316 End of report