IPv4 R&E Routing Table Report 23:00 GMT Thu 05 Nov, 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: 1080211 Prefixes after maximum aggregation (per Origin AS): 416667 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 540980 Number of IPv4 prefixes with a valid ROA: 768770 Number of IPv4 prefixes with an invalid ROA: 446 Number of IPv4 prefixes with no ROA: 310995 Total ASes present in the Internet Routing Table: 79606 Prefixes per ASN: 13.57 Origin-only ASes present in the Internet Routing Table: 68086 Origin ASes announcing only one prefix: 27985 Transit ASes present in the Internet Routing Table: 11520 Transit-only ASes present in the Internet Routing Table: 624 Paths with bogon ASNs present in the IPv4 Routing Table: 29 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: 1089 Number of instances of unregistered ASNs: 1111 Number of 32-bit ASNs allocated by the RIRs: 52021 Number of 32-bit ASNs visible in the Routing Table: 42116 Prefixes from 32-bit ASNs in the Routing Table: 245478 Number of bogon 32-bit ASNs visible in the Routing Table: 48 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 532 Number of addresses announced to Internet: 3126339072 Equivalent to 186 /8s, 88 /16s and 38 /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: 357258 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 293403 Total APNIC prefixes after maximum aggregation: 85671 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 279229 Unique aggregates announced from the APNIC address blocks: 110891 APNIC Region origin ASes present in the Internet Routing Table: 15442 APNIC Prefixes per ASN: 18.08 APNIC Region origin ASes announcing only one prefix: 4776 APNIC Region transit ASes present in the Internet Routing Table: 2102 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: 11075 Number of APNIC addresses announced to Internet: 749263616 Equivalent to 44 /8s, 168 /16s and 219 /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: 313065 Total ARIN prefixes after maximum aggregation: 140397 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 310188 Unique aggregates announced from the ARIN address blocks: 153264 ARIN Region origin ASes present in the Internet Routing Table: 19560 ARIN Prefixes per ASN: 15.86 ARIN Region origin ASes announcing only one prefix: 7242 ARIN Region transit ASes present in the Internet Routing Table: 1976 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: 5884 Number of ARIN addresses announced to Internet: 1355290112 Equivalent to 80 /8s, 200 /16s and 22 /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: 302009 Total RIPE prefixes after maximum aggregation: 150688 RIPE Deaggregation factor: 2.00 Prefixes being announced from the RIPE address blocks: 310439 Unique aggregates announced from the RIPE address blocks: 204832 RIPE Region origin ASes present in the Internet Routing Table: 29985 RIPE Prefixes per ASN: 10.35 RIPE Region origin ASes announcing only one prefix: 12429 RIPE Region transit ASes present in the Internet Routing Table: 4194 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 54 Number of RIPE region 32-bit ASNs visible in the Routing Table: 14068 Number of RIPE addresses announced to Internet: 751590912 Equivalent to 44 /8s, 204 /16s and 94 /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: 131962 Total LACNIC prefixes after maximum aggregation: 31999 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 125219 Unique aggregates announced from the LACNIC address blocks: 51767 LACNIC Region origin ASes present in the Internet Routing Table: 11546 LACNIC Prefixes per ASN: 10.85 LACNIC Region origin ASes announcing only one prefix: 2766 LACNIC Region transit ASes present in the Internet Routing Table: 2653 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 53 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9620 Number of LACNIC addresses announced to Internet: 167203840 Equivalent to 9 /8s, 247 /16s and 84 /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: 38683 Total AfriNIC prefixes after maximum aggregation: 7246 AfriNIC Deaggregation factor: 5.34 Prefixes being announced from the AfriNIC address blocks: 54604 Unique aggregates announced from the AfriNIC address blocks: 19779 AfriNIC Region origin ASes present in the Internet Routing Table: 2104 AfriNIC Prefixes per ASN: 25.95 AfriNIC Region origin ASes announcing only one prefix: 772 AfriNIC Region transit ASes present in the Internet Routing Table: 385 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: 1469 Number of AfriNIC addresses announced to Internet: 102699264 Equivalent to 6 /8s, 31 /16s and 17 /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 14021 8737 135 CHINAMOBILE-CN - China Mobile Communicati 9498 5132 561 340 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4709 347 25 FPT-VN - FPT Telecom Company, VN 7545 4646 842 280 TPG-INTERNET-AP - TPG Telecom Limited, AU 7552 4101 1331 24 VIETEL-AS-AP - Viettel Group, VN 17561 3928 246 540 LCS-AS-AP - LARUS Limited, HK 56046 3637 887 182 CMNET-Jiangsu-AP - China Mobile communica 7713 3457 1044 69 telkomnet-as-ap - PT Telekomunikasi Indon 140292 3340 340 1629 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK - 45899 3273 1867 104 VNPT-AS-VN - VNPT Corp, VN 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 17264 42613 5599 AMAZON-02 - Amazon.com, Inc., US 11492 4653 309 1092 CABLEONE - CABLE ONE, INC., US 22773 4509 3219 458 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 7155 4337 286 87 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3845 1305 74 SHAW - Shaw Communications, CA 396982 3558 5382 607 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3319 246 1172 AS-COLOCROSSING - HostPapa, US 749 3132 54647 2383 DNIC-AS-00749 - United States Department 6079 2934 1168 1499 RCN-AS - RCN, US 7029 2899 2583 869 WINDSTREAM - Windstream Communications LL 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 6824 1711 150 UNI2-AS - Orange Espagne SA, ES 39891 5044 311 77 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4382 391 2660 M247 - M247 Europe SRL, RO 20940 3806 3388 105 AKAMAI-ASN1 - Akamai International B.V., 212238 3687 272 2797 CDNEXT - Datacamp Limited, GB 12389 3108 2329 869 ROSTELECOM-AS - PJSC Rostelecom, RU 29355 2526 155 30 KCELL-AS - Kcell JSC, KZ 34984 2510 369 593 TELLCOM-AS - Superonline Iletisim Hizmetl 25019 2051 1384 141 SAUDINETSTC-AS - Saudi Telecom Company JS 3257 1755 2096 985 GTT-BACKBONE - GTT Communications Inc., U 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 13102 3301 615 AS8151 - UNINET, MX 10620 3397 442 1122 AS10620 - Telmex Colombia S.A., CO 13999 2218 495 328 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1848 369 65 AS11830 - Instituto Costarricense de Elec 11664 1512 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1400 2433 268 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1268 763 226 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1171 371 21 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1101 72 386 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 27715 1079 75 55 AS27715 - Locaweb Servicos de Internet S/ 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 Vodafone Data - Vodafone Data, EG 36992 1936 1543 326 ETISALAT MISR - ETISALAT MISR, EG 24863 1458 389 20 Link Egypt (Link.NET) - Link Egypt (Link. 36903 1389 606 122 Office National des Postes et Telecommuni 36935 1303 524 47 Vodafone Data - Vodafone Data, EG 37069 1128 1100 11 The Egyptian Company for Mobile Services 29571 1086 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 15399 806 57 60 Wananchi Group (Kenya) Limited - Wananchi 20011 765 188 328 Dimension Data - Dimension Data, ZA 36914 551 82 3 Kenya Education Network - Kenya Education 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 17264 42613 5599 AMAZON-02 - Amazon.com, Inc., US 9808 14021 8737 135 CHINAMOBILE-CN - China Mobile Communicati 8151 13102 3301 615 AS8151 - UNINET, MX 12479 6824 1711 150 UNI2-AS - Orange Espagne SA, ES 9498 5132 561 340 BBIL-AP - BHARTI Airtel Ltd., IN 39891 5044 311 77 ALJAWWALSTC-AS - Saudi Telecom Company JS 18403 4709 347 25 FPT-VN - FPT Telecom Company, VN 11492 4653 309 1092 CABLEONE - CABLE ONE, INC., US 7545 4646 842 280 TPG-INTERNET-AP - TPG Telecom Limited, AU 22773 4509 3219 458 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 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 14021 13886 CHINAMOBILE-CN - China Mobile Communications Gr 8151 13102 12487 AS8151 - UNINET, MX 12479 6824 6674 UNI2-AS - Orange Espagne SA, ES 39891 5044 4967 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5132 4792 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4709 4684 FPT-VN - FPT Telecom Company, VN 7545 4646 4366 TPG-INTERNET-AP - TPG Telecom Limited, AU 7155 4337 4250 VIASAT-SP-BACKBONE - ViaSat,Inc., US 7552 4101 4077 VIETEL-AS-AP - Viettel Group, VN 22773 4509 4051 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 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 4593 UNALLOCATED 2.26.216.0/24 10122 NETSTAR-AS-AP - NETSTAR 4593 UNALLOCATED 2.26.219.0/24 10122 NETSTAR-AS-AP - NETSTAR 394928 UNALLOCATED 8.2.70.0/24 3356 LEVEL3 - Level 3 Parent 23338 UNALLOCATED 8.14.84.0/22 400043 IBRIDGE-01 - IBRIDGE CL 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 396243 UNALLOCATED 8.37.112.0/24 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 23.131.100.0/24 Origin: 401541 UNASSIGNED 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.156.0/24 Origin: 401541 UNASSIGNED 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.212.0/24 Origin: 401541 UNASSIGNED 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.133.212.0/24 Origin: 18604 UNASSIGNED 23.133.212.0/24 Transit: 394625 WHITELABELIT - WhiteLabel IT Solutions C 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 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 /13:587 /14:1194 /15:2129 /16:13699 /17:8247 /18:13248 /19:25406 /20:45420 /21:53575 /22:113859 /23:111196 /24:691186 /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 7304 13102 AS8151 - UNINET, MX 12479 5744 6824 UNI2-AS - Orange Espagne SA, ES 39891 3727 5044 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3611 3845 SHAW - Shaw Communications, CA 11492 3519 4653 CABLEONE - CABLE ONE, INC., US 16509 3385 17264 AMAZON-02 - Amazon.com, Inc., US 7155 3268 4337 VIASAT-SP-BACKBONE - ViaSat,Inc., US 22773 2713 4509 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 10620 2232 3397 AS10620 - Telmex Colombia S.A., CO 30036 2173 2519 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) ---------------------------------------------- 1:2749 2:2994 3:1265 4:6 5:5533 6:216 7:6 8:1495 9:536 11:172 12:1070 13:1285 14:2719 15:488 16:391 17:474 18:1059 20:602 21:4 22:189 23:8670 24:2810 25:2 26:2 27:2938 29:19 31:4020 32:34 34:94 35:313 36:4949 37:4480 38:10601 39:1450 40:452 41:4568 42:2262 43:3556 44:533 45:20177 46:5022 47:477 48:377 49:2500 50:2023 51:1128 52:1433 54:459 55:1100 56:11 57:348 58:2507 59:1382 60:1190 61:3333 62:3166 63:1657 64:6683 65:2251 66:5950 67:3224 68:1360 69:4088 70:1067 71:597 72:3373 74:3150 75:1743 76:605 77:2955 78:2196 79:2108 80:2440 81:2310 82:4467 83:1574 84:2148 85:3946 86:1149 87:3012 88:1367 89:4938 90:761 91:8571 92:2780 93:3060 94:4674 95:4780 96:1460 97:300 98:900 99:1142 100:65 101:1634 102:4778 103:33182 104:5806 105:968 106:974 107:2996 108:1467 109:4046 110:2244 111:4253 112:3233 113:1975 114:2646 115:2338 116:2116 117:3917 118:3000 119:2139 120:2840 121:2041 122:3063 123:2214 124:1740 125:3023 126:175 128:1564 129:959 130:1782 131:2596 132:886 133:494 134:1859 135:695 136:1598 137:1429 138:3462 139:1827 140:1900 141:2000 142:2769 143:2363 144:1927 145:722 146:2258 147:2459 148:2932 149:3618 150:1505 151:3195 152:2793 153:2195 154:8846 155:2360 156:4239 157:2594 158:1664 159:2953 160:4209 161:2118 162:4285 163:2807 164:2524 165:2788 166:1264 167:2412 168:4290 169:999 170:5610 171:1140 172:4917 173:3455 174:811 175:1439 176:4134 177:6446 178:4695 179:3093 180:3511 181:4766 182:4174 183:2912 184:2203 185:22017 186:6618 187:6925 188:4979 189:4898 190:10032 191:2356 192:12130 193:9626 194:7989 195:5998 196:3505 197:3466 198:6391 199:6187 200:8358 201:6998 202:10711 203:10693 204:4796 205:3736 206:4467 207:3898 208:4348 209:5381 210:4758 211:2738 212:5216 213:4136 214:1035 215:58 216:7311 217:3975 218:1929 219:417 220:2229 221:1474 222:978 223:3686 End of report