IPv4 R&E Routing Table Report 23:00 GMT Sat 10 Oct, 2026 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: 1077965 Prefixes after maximum aggregation (per Origin AS): 414837 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 536063 Number of IPv4 prefixes with a valid ROA: 760938 Number of IPv4 prefixes with an invalid ROA: 395 Number of IPv4 prefixes with no ROA: 316632 Total ASes present in the Internet Routing Table: 79409 Prefixes per ASN: 13.57 Origin-only ASes present in the Internet Routing Table: 67933 Origin ASes announcing only one prefix: 27858 Transit ASes present in the Internet Routing Table: 11476 Transit-only ASes present in the Internet Routing Table: 635 Paths with bogon ASNs present in the IPv4 Routing Table: 49 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 216 Max AS path prepend of ASN (205624) 211 Prefixes from unregistered ASNs in the Routing Table: 1132 Number of instances of unregistered ASNs: 1154 Number of 32-bit ASNs allocated by the RIRs: 51623 Number of 32-bit ASNs visible in the Routing Table: 41872 Prefixes from 32-bit ASNs in the Routing Table: 244037 Number of bogon 32-bit ASNs visible in the Routing Table: 50 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 592 Number of addresses announced to Internet: 3125885440 Equivalent to 186 /8s, 81 /16s and 58 /24s Percentage of available address space announced: 84.4 Percentage of allocated address space announced: 84.4 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: 355209 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 291278 Total APNIC prefixes after maximum aggregation: 85542 APNIC Deaggregation factor: 3.41 Prefixes being announced from the APNIC address blocks: 279060 Unique aggregates announced from the APNIC address blocks: 110848 APNIC Region origin ASes present in the Internet Routing Table: 15394 APNIC Prefixes per ASN: 18.13 APNIC Region origin ASes announcing only one prefix: 4743 APNIC Region transit ASes present in the Internet Routing Table: 2082 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 53 Number of APNIC region 32-bit ASNs visible in the Routing Table: 11015 Number of APNIC addresses announced to Internet: 748971008 Equivalent to 44 /8s, 164 /16s and 100 /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: 314650 Total ARIN prefixes after maximum aggregation: 140133 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 311712 Unique aggregates announced from the ARIN address blocks: 153382 ARIN Region origin ASes present in the Internet Routing Table: 19502 ARIN Prefixes per ASN: 15.98 ARIN Region origin ASes announcing only one prefix: 7216 ARIN Region transit ASes present in the Internet Routing Table: 1983 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 216 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5831 Number of ARIN addresses announced to Internet: 1355107840 Equivalent to 80 /8s, 197 /16s and 78 /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, 393216-404380 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: 300562 Total RIPE prefixes after maximum aggregation: 149573 RIPE Deaggregation factor: 2.01 Prefixes being announced from the RIPE address blocks: 306844 Unique aggregates announced from the RIPE address blocks: 201032 RIPE Region origin ASes present in the Internet Routing Table: 29896 RIPE Prefixes per ASN: 10.26 RIPE Region origin ASes announcing only one prefix: 12363 RIPE Region transit ASes present in the Internet Routing Table: 4184 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 54 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13970 Number of RIPE addresses announced to Internet: 750456064 Equivalent to 44 /8s, 187 /16s and 13 /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 196608-219547 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: 131835 Total LACNIC prefixes after maximum aggregation: 31798 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 125467 Unique aggregates announced from the LACNIC address blocks: 51536 LACNIC Region origin ASes present in the Internet Routing Table: 11528 LACNIC Prefixes per ASN: 10.88 LACNIC Region origin ASes announcing only one prefix: 2768 LACNIC Region transit ASes present in the Internet Routing Table: 2632 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 36 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9603 Number of LACNIC addresses announced to Internet: 167384832 Equivalent to 9 /8s, 250 /16s and 23 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 38508 Total AfriNIC prefixes after maximum aggregation: 7101 AfriNIC Deaggregation factor: 5.42 Prefixes being announced from the AfriNIC address blocks: 54290 Unique aggregates announced from the AfriNIC address blocks: 18764 AfriNIC Region origin ASes present in the Internet Routing Table: 2090 AfriNIC Prefixes per ASN: 25.98 AfriNIC Region origin ASes announcing only one prefix: 768 AfriNIC Region transit ASes present in the Internet Routing Table: 384 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 69 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1453 Number of AfriNIC addresses announced to Internet: 103659264 Equivalent to 6 /8s, 45 /16s and 183 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 14023 8737 135 CHINAMOBILE-CN China Mobile Communication 9498 5102 560 328 BBIL-AP BHARTI Airtel Ltd., IN 18403 4728 347 24 FPT-VN FPT Telecom Company, VN 7545 4642 833 276 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 4087 1331 24 VIETEL-AS-AP Viettel Group, VN 56046 3625 887 179 CMNET-JIANGSU-AP China Mobile communicati 7713 3452 1043 69 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3408 1868 98 VNPT-AS-VN VNPT Corp, VN 140292 3086 316 1814 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CH 24560 2384 538 663 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 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 18638 42592 5614 AMAZON-02 - Amazon.com, Inc., US 22773 4915 3308 454 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4631 307 1088 CABLEONE - CABLE ONE, INC., US 7155 4337 286 87 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3834 1305 72 SHAW - Shaw Communications, CA 396982 3546 5381 599 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3280 243 1161 AS-COLOCROSSING - HostPapa, US 749 3133 54647 2384 DNIC-AS-00749 - United States Department 7029 2900 2587 914 WINDSTREAM - Windstream Communications LL 31898 2818 1396 1181 ORACLE-BMC-31898 - Oracle Corporation, 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 6940 1709 149 UNI2-AS, ES 39891 4976 307 73 ALJAWWALSTC-AS, SA 9009 4375 390 2673 M247, RO 20940 3805 3388 106 AKAMAI-ASN1, NL 212238 3648 262 2771 CDNEXT, GB 12389 3099 2329 860 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2527 371 601 TELLCOM-AS, TR 29355 2523 155 28 KCELL-AS, KZ 3257 1740 2082 977 GTT-BACKBONE GTT, US 8452 1719 1852 14 TE-AS TE-AS, EG 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 13271 3296 616 UNINET, MX 10620 3399 442 1122 Telmex Colombia S.A., CO 13999 2222 493 324 Mega Cable, S.A. de C.V., MX 11830 1860 369 65 Instituto Costarricense de Electricidad y 11664 1509 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1389 2433 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1267 762 225 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1178 371 21 INTEGRATEL PERU S.A.A., PE 22884 1099 73 383 TOTAL PLAY TELECOMUNICACIONES, S.A.P.I. D 27715 1078 75 54 Locaweb Servicos de Internet SA, BR 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 1972 481 26 RAYA-AS, EG 36992 1943 1543 326 ETISALAT-MISR, EG 24863 1457 389 20 LINKdotNET-AS, EG 36903 1352 588 110 MT-MPLS, MA 36935 1303 524 47 Vodafone-, EG 37069 1128 1100 11 MOBINIL, EG 29571 1086 70 18 ORANGE-COTE-IVOIRE, CI 15399 806 57 60 WANANCHI-, KE 20011 562 162 174 NTT-DATA-Inc, ZA 36914 545 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 18638 42592 5614 AMAZON-02 - Amazon.com, Inc., US 9808 14023 8737 135 CHINAMOBILE-CN China Mobile Communication 8151 13271 3296 616 UNINET, MX 12479 6940 1709 149 UNI2-AS, ES 9498 5102 560 328 BBIL-AP BHARTI Airtel Ltd., IN 39891 4976 307 73 ALJAWWALSTC-AS, SA 22773 4915 3308 454 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 18403 4728 347 24 FPT-VN FPT Telecom Company, VN 7545 4642 833 276 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4631 307 1088 CABLEONE - CABLE ONE, INC., 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 9808 14023 13888 CHINAMOBILE-CN China Mobile Communications Grou 8151 13271 12655 UNINET, MX 12479 6940 6791 UNI2-AS, ES 39891 4976 4903 ALJAWWALSTC-AS, SA 9498 5102 4774 BBIL-AP BHARTI Airtel Ltd., IN 18403 4728 4704 FPT-VN FPT Telecom Company, VN 22773 4915 4461 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7545 4642 4366 TPG-INTERNET-AP TPG Telecom Limited, AU 7155 4337 4250 VIASAT-SP-BACKBONE - ViaSat,Inc., US 7552 4087 4063 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 4593 UNALLOCATED 2.26.176.0/24 10122 NETSTAR-AS-AP NETSTAR S 4593 UNALLOCATED 2.26.216.0/24 10122 NETSTAR-AS-AP NETSTAR S 4593 UNALLOCATED 2.26.219.0/24 10122 NETSTAR-AS-AP NETSTAR S 394928 UNALLOCATED 8.2.70.0/24 6461 ZAYO-6461 - Zayo Bandwi 23338 UNALLOCATED 8.14.84.0/22 400043 IBRIDGE-01 - IBRIDGE CL 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 174 COGENT-174 - Cogent Com 396243 UNALLOCATED 8.34.113.0/24 3356 LEVEL3 - Level 3 Parent 397274 UNALLOCATED 8.36.79.0/24 3356 LEVEL3 - Level 3 Parent Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.130.160.0/24 Origin: 16509 AMAZON-02 - Amazon.com, Inc., US 23.130.160.0/24 Transit: 2914 NTT-DATA-2914 - NTT America, Inc., US 23.131.100.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.131.156.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.131.212.0/24 Origin: 401541 OSIE - Osie, ZZ 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN CMC Telecom Infrastructure 23.133.212.0/24 Origin: 18604 AIHOST - Ai Host, LLC, ZZ 23.133.212.0/24 Transit: 394625 WHITELABELIT - WhiteLabel IT Solutions C 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 /10:39 /11:97 /12:299 /13:588 /14:1190 /15:2131 /16:13708 /17:8243 /18:13247 /19:25483 /20:45627 /21:53355 /22:113654 /23:110964 /24:689310 /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 8151 7428 13271 UNINET, MX 12479 5859 6940 UNI2-AS, ES 39891 3661 4976 ALJAWWALSTC-AS, SA 6327 3601 3834 SHAW - Shaw Communications, CA 16509 3597 18638 AMAZON-02 - Amazon.com, Inc., US 11492 3511 4631 CABLEONE - CABLE ONE, INC., US 7155 3268 4337 VIASAT-SP-BACKBONE - ViaSat,Inc., US 22773 3133 4915 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 10620 2234 3399 Telmex Colombia S.A., CO 30036 2187 2533 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2745 2:2909 3:1829 4:6 5:5573 6:211 7:6 8:1498 9:308 11:172 12:1086 13:1487 14:2720 15:489 16:316 17:468 18:1722 20:599 21:4 22:188 23:8614 24:2817 25:2 27:2939 28:8 29:19 31:3977 32:34 34:94 35:305 36:4929 37:4450 38:10568 39:1445 40:451 41:4609 42:2273 43:3506 44:528 45:20072 46:4986 47:475 48:171 49:2472 50:2023 51:1037 52:1520 54:474 55:1148 56:11 57:332 58:2893 59:1497 60:1191 61:3272 62:3194 63:1675 64:6676 65:2278 66:6300 67:3328 68:1350 69:4154 70:1086 71:603 72:3370 74:3143 75:1756 76:600 77:2920 78:2165 79:1981 80:2398 81:2309 82:4467 83:1522 84:2168 85:3927 86:1149 87:2952 88:1380 89:4956 90:780 91:8552 92:2786 93:3066 94:4639 95:4770 96:1453 97:304 98:969 99:1162 100:65 101:1619 102:4753 103:33149 104:5795 105:966 106:969 107:3006 108:1715 109:4002 110:2240 111:4236 112:3210 113:1984 114:2627 115:2327 116:2114 117:3891 118:2994 119:2147 120:2853 121:1834 122:3067 123:2205 124:1984 125:3029 126:175 128:1587 129:991 130:1768 131:2622 132:957 133:483 134:1830 135:676 136:1556 137:1411 138:3440 139:1831 140:1886 141:1905 142:2736 143:2362 144:1934 145:717 146:2248 147:2427 148:2898 149:3580 150:1517 151:3161 152:2701 153:2209 154:8900 155:2376 156:4098 157:2582 158:1658 159:2987 160:4179 161:2165 162:4253 163:2763 164:2508 165:2798 166:1256 167:2419 168:4489 169:990 170:5593 171:1142 172:4951 173:3484 174:894 175:1430 176:4064 177:5625 178:4680 179:2836 180:3495 181:4717 182:4105 183:2893 184:2201 185:22085 186:6576 187:6052 188:4865 189:5004 190:10015 191:2011 192:11982 193:9629 194:8005 195:6022 196:3483 197:3283 198:6316 199:6152 200:8327 201:6943 202:10654 203:10730 204:4731 205:3699 206:4474 207:3874 208:4338 209:5458 210:4743 211:2728 212:5275 213:4137 214:1035 215:50 216:7317 217:3935 218:1926 219:414 220:2247 221:1469 222:981 223:3659 End of report