IPv4 R&E Routing Table Report 23:00 GMT Mon 27 Jul, 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: 1059134 Prefixes after maximum aggregation (per Origin AS): 407312 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 525966 Number of IPv4 prefixes with a valid ROA: 718394 Number of IPv4 prefixes with an invalid ROA: 494 Number of IPv4 prefixes with no ROA: 340246 Total ASes present in the Internet Routing Table: 78828 Prefixes per ASN: 13.44 Origin-only ASes present in the Internet Routing Table: 67503 Origin ASes announcing only one prefix: 27619 Transit ASes present in the Internet Routing Table: 11325 Transit-only ASes present in the Internet Routing Table: 606 Paths with bogon ASNs present in the IPv4 Routing Table: 73 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: 1279 Number of instances of unregistered ASNs: 1318 Number of 32-bit ASNs allocated by the RIRs: 50573 Number of 32-bit ASNs visible in the Routing Table: 41163 Prefixes from 32-bit ASNs in the Routing Table: 236821 Number of bogon 32-bit ASNs visible in the Routing Table: 134 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 503 Number of addresses announced to Internet: 3120406016 Equivalent to 185 /8s, 253 /16s and 158 /24s Percentage of available address space announced: 84.3 Percentage of allocated address space announced: 84.3 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: 347513 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 289068 Total APNIC prefixes after maximum aggregation: 84043 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 275616 Unique aggregates announced from the APNIC address blocks: 109238 APNIC Region origin ASes present in the Internet Routing Table: 15250 APNIC Prefixes per ASN: 18.07 APNIC Region origin ASes announcing only one prefix: 4672 APNIC Region transit ASes present in the Internet Routing Table: 2063 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: 10857 Number of APNIC addresses announced to Internet: 748888064 Equivalent to 44 /8s, 163 /16s and 32 /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: 306555 Total ARIN prefixes after maximum aggregation: 138213 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 304526 Unique aggregates announced from the ARIN address blocks: 150096 ARIN Region origin ASes present in the Internet Routing Table: 19460 ARIN Prefixes per ASN: 15.65 ARIN Region origin ASes announcing only one prefix: 7151 ARIN Region transit ASes present in the Internet Routing Table: 1909 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: 5701 Number of ARIN addresses announced to Internet: 1348458496 Equivalent to 80 /8s, 95 /16s and 216 /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: 295280 Total RIPE prefixes after maximum aggregation: 146173 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 300387 Unique aggregates announced from the RIPE address blocks: 196133 RIPE Region origin ASes present in the Internet Routing Table: 29617 RIPE Prefixes per ASN: 10.14 RIPE Region origin ASes announcing only one prefix: 12266 RIPE Region transit ASes present in the Internet Routing Table: 4129 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 206 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13644 Number of RIPE addresses announced to Internet: 749578240 Equivalent to 44 /8s, 173 /16s and 168 /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: 129758 Total LACNIC prefixes after maximum aggregation: 31063 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 124213 Unique aggregates announced from the LACNIC address blocks: 50577 LACNIC Region origin ASes present in the Internet Routing Table: 11474 LACNIC Prefixes per ASN: 10.83 LACNIC Region origin ASes announcing only one prefix: 2788 LACNIC Region transit ASes present in the Internet Routing Table: 2635 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 105 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9550 Number of LACNIC addresses announced to Internet: 169278208 Equivalent to 10 /8s, 22 /16s and 251 /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: 37194 Total AfriNIC prefixes after maximum aggregation: 7092 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 53889 Unique aggregates announced from the AfriNIC address blocks: 19493 AfriNIC Region origin ASes present in the Internet Routing Table: 2051 AfriNIC Prefixes per ASN: 26.27 AfriNIC Region origin ASes announcing only one prefix: 742 AfriNIC Region transit ASes present in the Internet Routing Table: 378 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 85 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1411 Number of AfriNIC addresses announced to Internet: 103925760 Equivalent to 6 /8s, 49 /16s and 200 /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 14067 8737 120 CHINAMOBILE-CN - China Mobile Communicati 7545 5836 818 450 TPG-INTERNET-AP - TPG Telecom Limited, AU 9498 5055 558 339 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4619 347 24 FPT-VN - FPT Telecom Company, VN 7552 4068 1331 24 VIETEL-AS-AP - Viettel Group, VN 7713 3761 1044 63 telkomnet-as-ap - PT Telekomunikasi Indon 56046 3589 888 178 CMNET-Jiangsu-AP - China Mobile communica 45899 3399 1868 99 VNPT-AS-VN - VNPT Corp, VN 17561 3179 200 542 LCS-AS-AP - LARUS Limited, HK 24560 2744 732 735 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 15604 41518 5628 AMAZON-02 - Amazon.com, Inc., US 22773 4799 3126 367 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4595 305 1116 CABLEONE - CABLE ONE, INC., US 7155 3989 286 111 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3724 1305 74 SHAW - Shaw Communications, CA 396982 3445 4874 538 GOOGLE-CLOUD-PLATFORM - Google LLC, US 36352 3175 238 1108 AS-COLOCROSSING - HostPapa, US 749 3134 54727 2385 DNIC-AS-00749 - United States Department 7029 2703 2551 876 WINDSTREAM - Windstream Communications LL 30036 2554 356 539 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7031 1711 150 UNI2-AS - Orange Espagne SA, ES 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4172 375 2553 M247 - M247 Europe SRL, RO 20940 3806 3389 109 AKAMAI-ASN1 - Akamai International B.V., 212238 3469 248 2612 CDNEXT - Datacamp Limited, GB 12389 3127 2331 873 ROSTELECOM-AS - PJSC Rostelecom, RU 29355 2548 151 25 KCELL-AS - Kcell JSC, KZ 34984 2485 365 584 TELLCOM-AS - Superonline Iletisim Hizmetl 203020 1661 254 831 HostRoyale - HostRoyale Technologies Pvt 44559 1642 103 767 ITHOSTLINE - IT HOSTLINE LTD, CY 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 12850 3265 621 AS8151 - UNINET, MX 10620 3442 451 1105 AS10620 - Telmex Colombia S.A., CO 13999 2286 499 328 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1903 369 65 AS11830 - Instituto Costarricense de Elec 11664 1491 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1374 2431 275 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1342 768 213 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1210 371 21 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1097 70 386 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 26615 1050 2384 95 AS26615 - TIM S/A, 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 36992 1930 1543 333 ETISALAT MISR - ETISALAT MISR, EG 24835 1760 585 33 Vodafone Data - Vodafone Data, EG 36903 1350 587 104 Office National des Postes et Telecommuni 24863 1304 389 16 Link Egypt (Link.NET) - Link Egypt (Link. 36935 1116 523 46 Vodafone Data - Vodafone Data, EG 37069 1116 1100 11 The Egyptian Company for Mobile Services 29571 1086 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 328608 580 54 195 Africa on Cloud - Africa on Cloud, ZA 15399 560 57 61 Wananchi Group (Kenya) Limited - Wananchi 36914 550 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 15604 41518 5628 AMAZON-02 - Amazon.com, Inc., US 9808 14067 8737 120 CHINAMOBILE-CN - China Mobile Communicati 8151 12850 3265 621 AS8151 - UNINET, MX 12479 7031 1711 150 UNI2-AS - Orange Espagne SA, ES 7545 5836 818 450 TPG-INTERNET-AP - TPG Telecom Limited, AU 9498 5055 558 339 BBIL-AP - BHARTI Airtel Ltd., IN 39891 4907 302 76 ALJAWWALSTC-AS - Saudi Telecom Company JS 22773 4799 3126 367 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 18403 4619 347 24 FPT-VN - FPT Telecom Company, VN 11492 4595 305 1116 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 14067 13947 CHINAMOBILE-CN - China Mobile Communications Gr 8151 12850 12229 AS8151 - UNINET, MX 12479 7031 6881 UNI2-AS - Orange Espagne SA, ES 7545 5836 5386 TPG-INTERNET-AP - TPG Telecom Limited, AU 39891 4907 4831 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 5055 4716 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4619 4595 FPT-VN - FPT Telecom Company, VN 22773 4799 4432 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4068 4044 VIETEL-AS-AP - Viettel Group, VN 7155 3989 3878 VIASAT-SP-BACKBONE - ViaSat,Inc., US 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 394928 UNALLOCATED 8.2.70.0/24 6461 ZAYO-6461 - Zayo Bandwi 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 396243 UNALLOCATED 8.37.112.0/24 3356 LEVEL3 - Level 3 Parent 396243 UNALLOCATED 8.37.123.0/24 3356 LEVEL3 - Level 3 Parent 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 397274 UNALLOCATED 8.40.70.0/24 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 /13:584 /14:1184 /15:2121 /16:13693 /17:8246 /18:13294 /19:25434 /20:45719 /21:52627 /22:113141 /23:109770 /24:672856 /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 7077 12850 AS8151 - UNINET, MX 12479 5959 7031 UNI2-AS - Orange Espagne SA, ES 39891 3656 4907 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3506 3724 SHAW - Shaw Communications, CA 11492 3486 4595 CABLEONE - CABLE ONE, INC., US 22773 3058 4799 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 16509 2971 15604 AMAZON-02 - Amazon.com, Inc., US 7155 2943 3989 VIASAT-SP-BACKBONE - ViaSat,Inc., US 10620 2246 3442 AS10620 - Telmex Colombia S.A., CO 30036 2209 2554 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) ---------------------------------------------- 1:2560 2:2820 3:1023 4:5 5:5335 6:206 7:6 8:1371 9:78 11:172 12:1101 13:815 14:2739 15:483 16:259 17:454 18:939 20:600 21:4 22:188 23:8521 24:2782 25:2 27:2856 28:6 29:19 31:3802 32:36 34:94 35:287 36:4882 37:4437 38:10163 39:1373 40:420 41:4565 42:2222 43:3377 44:476 45:20065 46:4977 47:476 48:168 49:2402 50:2012 51:786 52:1369 54:303 55:1163 56:11 57:326 58:2420 59:1364 60:1213 61:3215 62:3168 63:1752 64:6552 65:2159 66:6170 67:3343 68:1293 69:4074 70:1053 71:604 72:3262 74:3048 75:1600 76:594 77:2926 78:2108 79:2083 80:2364 81:2279 82:4255 83:1483 84:2160 85:3907 86:1103 87:2764 88:1318 89:4810 90:774 91:8487 92:2755 93:3038 94:4465 95:4718 96:1454 97:308 98:926 99:966 100:73 101:1599 102:4724 103:33115 104:5636 105:826 106:911 107:2971 108:1339 109:3914 110:2287 111:4171 112:3129 113:1946 114:2507 115:2313 116:2106 117:3679 118:3031 119:2108 120:2795 121:1664 122:3036 123:2219 124:1776 125:3023 126:157 128:1564 129:968 130:1704 131:2534 132:883 133:489 134:1758 135:647 136:1544 137:1385 138:3438 139:1802 140:1868 141:1801 142:2624 143:2121 144:1832 145:693 146:2183 147:2301 148:2817 149:3595 150:1392 151:2969 152:2636 153:1917 154:9617 155:2379 156:4435 157:2520 158:1616 159:2894 160:3915 161:2048 162:4189 163:2679 164:2412 165:2778 166:1297 167:2372 168:4230 169:901 170:5624 171:1136 172:4928 173:3476 174:890 175:1392 176:4028 177:5204 178:4488 179:2534 180:3367 181:4662 182:4063 183:2864 184:2049 185:21929 186:6571 187:5543 188:4756 189:4673 190:9963 191:1805 192:11792 193:9634 194:7954 195:5892 196:3415 197:3131 198:6163 199:6085 200:8265 201:6652 202:10688 203:10680 204:4703 205:3678 206:4404 207:3915 208:4331 209:5410 210:4742 211:2718 212:5204 213:4131 214:1024 215:47 216:7314 217:3760 218:1870 219:419 220:2288 221:1376 222:941 223:3612 End of report