IPv4 R&E Routing Table Report 23:05 GMT Fri 24 Feb, 2023 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: 906641 Prefixes after maximum aggregation (per Origin AS): 345517 Deaggregation factor: 2.62 Unique aggregates announced (without unneeded subnets): 446058 Number of IPv4 prefixes with a valid ROA: 375552 Number of IPv4 prefixes with an invalid ROA: 1516 Number of IPv4 prefixes with no ROA: 529573 Total ASes present in the Internet Routing Table: 74005 Prefixes per ASN: 12.25 Origin-only ASes present in the Internet Routing Table: 63544 Origin ASes announcing only one prefix: 26086 Transit ASes present in the Internet Routing Table: 10461 Transit-only ASes present in the Internet Routing Table: 438 Paths with bogon ASNs present in the IPv4 Routing Table: 23 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 164 Max AS path prepend of ASN ( 51156) 160 Prefixes from unregistered ASNs in the Routing Table: 1050 Number of instances of unregistered ASNs: 1056 Number of 32-bit ASNs allocated by the RIRs: 41266 Number of 32-bit ASNs visible in the Routing Table: 34187 Prefixes from 32-bit ASNs in the Routing Table: 167153 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: 569 Number of addresses announced to Internet: 3062655488 Equivalent to 182 /8s, 140 /16s and 106 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 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: 305101 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 234915 Total APNIC prefixes after maximum aggregation: 68270 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 229651 Unique aggregates announced from the APNIC address blocks: 97849 APNIC Region origin ASes present in the Internet Routing Table: 13235 APNIC Prefixes per ASN: 17.35 APNIC Region origin ASes announcing only one prefix: 3833 APNIC Region transit ASes present in the Internet Routing Table: 1777 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8573 Number of APNIC addresses announced to Internet: 773150720 Equivalent to 46 /8s, 21 /16s and 88 /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, 131072-151865 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: 266656 Total ARIN prefixes after maximum aggregation: 121406 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 268662 Unique aggregates announced from the ARIN address blocks: 130260 ARIN Region origin ASes present in the Internet Routing Table: 19011 ARIN Prefixes per ASN: 14.13 ARIN Region origin ASes announcing only one prefix: 6970 ARIN Region transit ASes present in the Internet Routing Table: 1890 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4732 Number of ARIN addresses announced to Internet: 1286236416 Equivalent to 76 /8s, 170 /16s and 105 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 257259 Total RIPE prefixes after maximum aggregation: 121087 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 253674 Unique aggregates announced from the RIPE address blocks: 156560 RIPE Region origin ASes present in the Internet Routing Table: 28232 RIPE Prefixes per ASN: 8.99 RIPE Region origin ASes announcing only one prefix: 12021 RIPE Region transit ASes present in the Internet Routing Table: 3988 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 164 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11034 Number of RIPE addresses announced to Internet: 718360576 Equivalent to 42 /8s, 209 /16s and 80 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 117323 Total LACNIC prefixes after maximum aggregation: 28214 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 116568 Unique aggregates announced from the LACNIC address blocks: 48822 LACNIC Region origin ASes present in the Internet Routing Table: 10969 LACNIC Prefixes per ASN: 10.63 LACNIC Region origin ASes announcing only one prefix: 2663 LACNIC Region transit ASes present in the Internet Routing Table: 2274 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 48 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8778 Number of LACNIC addresses announced to Internet: 176497152 Equivalent to 10 /8s, 133 /16s and 34 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 29438 Total AfriNIC prefixes after maximum aggregation: 5773 AfriNIC Deaggregation factor: 5.10 Prefixes being announced from the AfriNIC address blocks: 37517 Unique aggregates announced from the AfriNIC address blocks: 12123 AfriNIC Region origin ASes present in the Internet Routing Table: 1723 AfriNIC Prefixes per ASN: 21.77 AfriNIC Region origin ASes announcing only one prefix: 599 AfriNIC Region transit ASes present in the Internet Routing Table: 337 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1070 Number of AfriNIC addresses announced to Internet: 108067072 Equivalent to 6 /8s, 112 /16s and 249 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9457 8883 49 CHINAMOBILE-CN China Mobile Communicati 7545 5811 786 693 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3666 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3544 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3375 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2789 499 238 BBIL-AP BHARTI Airtel Ltd., IN 24560 2357 836 443 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2299 11250 586 KIXS-AS-KR Korea Telecom, KR 4755 2162 440 212 TATACOMM-AS TATA Communications formerl 45090 2148 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute 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 8013 10735 2880 AMAZON-02, US 11492 4512 299 641 CABLEONE, US 7155 3955 270 43 VIASAT-SP-BACKBONE, US 22773 3643 3063 283 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3504 1320 64 SHAW, CA 16625 3294 1649 2419 AKAMAI-AS, US 749 3034 50571 2301 DNIC-AS-00749, US 396982 2618 3586 354 GOOGLE-CLOUD-PLATFORM, US 7018 2587 24139 1580 ATT-INTERNET4, US 30036 2534 363 422 MEDIACOM-ENTERPRISE-BUSINESS, 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 7083 1706 146 UNI2-AS, ES 39891 4561 269 58 ALJAWWALSTC-AS, SA 20940 4038 3399 167 AKAMAI-ASN1, NL 8551 3900 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2897 2292 911 ROSTELECOM-AS, RU 9009 2670 253 1388 M247, RO 34984 2264 359 608 TELLCOM-AS, TR 6849 2144 339 19 UKRTELNET, UA 58224 1846 949 546 TCI, IR 13188 1607 100 27 TRIOLAN, UA 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 11166 3346 585 Uninet S.A. de C.V., MX 10620 3467 504 872 Telmex Colombia S.A., CO 11830 2264 369 65 Instituto Costarricense de Electricidad 13999 2259 370 603 Mega Cable, S.A. de C.V., MX 28573 1342 2324 256 Claro NXT Telecomunicacoes Ltda, BR 6503 1298 339 518 Axtel, S.A.B. de C.V., MX 3816 1292 746 156 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6147 1134 370 22 Telefonica del Peru S.A.A., PE 11664 1099 180 457 Techtel LMDS Comunicaciones Interactiva 26615 1025 2498 45 TIM 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 1542 533 30 RAYA-AS, EG 24863 1488 393 19 LINKdotNET-AS, EG 36992 1346 1517 278 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1001 67 53 ORANGE-COTE-IVOIRE, CI 36935 886 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 527 54 46 WANANCHI-, KE 24757 498 73 5 EthioNet-AS, ET 37342 493 32 1 MOVITEL, MZ 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 8151 11166 3346 585 Uninet S.A. de C.V., MX 9808 9457 8883 49 CHINAMOBILE-CN China Mobile Communicati 16509 8013 10735 2880 AMAZON-02, US 12479 7083 1706 146 UNI2-AS, ES 7545 5811 786 693 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 269 58 ALJAWWALSTC-AS, SA 11492 4512 299 641 CABLEONE, US 20940 4038 3399 167 AKAMAI-ASN1, NL 7155 3955 270 43 VIASAT-SP-BACKBONE, US 8551 3900 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 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 9457 9408 CHINAMOBILE-CN China Mobile Communications Grou 12479 7083 6937 UNI2-AS, ES 16509 8013 5133 AMAZON-02, US 7545 5811 5118 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4561 4503 ALJAWWALSTC-AS, SA 7155 3955 3912 VIASAT-SP-BACKBONE, US 11492 4512 3871 CABLEONE, US 20940 4038 3871 AKAMAI-ASN1, NL 8551 3900 3863 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3666 3645 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 3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V., 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 16641 UNALLOCATED 8.10.194.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.10.210.0/24 3356 LEVEL3, US 16641 UNALLOCATED 8.12.250.0/24 3356 LEVEL3, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 1618 UNALLOCATED 8.21.143.0/24 136796 CL-JP-AS CORELINK JAPAN, JP 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2914 NTT-LTD-2914, US 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR 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 /9:13 /10:38 /11:103 /12:299 /13:577 /14:1200 /15:2073 /16:13432 /17:8198 /18:13723 /19:24831 /20:42943 /21:50954 /22:109023 /23:96838 /24:542371 /25:0 /26:1 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6139 7083 UNI2-AS, ES 8151 5176 11166 Uninet S.A. de C.V., MX 39891 3552 4561 ALJAWWALSTC-AS, SA 11492 3428 4512 CABLEONE, US 8551 3372 3900 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3312 3504 SHAW, CA 7155 3032 3955 VIASAT-SP-BACKBONE, US 22773 2698 3643 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2191 2534 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2022 3467 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) ---------------------------------------------- 1:1642 2:1230 3:169 4:5 5:4333 6:115 7:6 8:1512 9:1 11:172 12:1583 13:391 14:2348 15:291 16:111 17:366 18:396 20:249 21:4 22:188 23:6066 24:2485 25:4 27:2522 29:19 31:2513 32:107 34:8 35:104 36:1924 37:4599 38:4206 39:863 40:152 41:4064 42:1057 43:2309 44:301 45:16361 46:4164 47:375 49:1731 50:1820 51:386 52:1582 54:397 55:869 56:8 57:89 58:1667 59:1115 60:983 61:2461 62:2622 63:1941 64:5636 65:2318 66:4905 67:3031 68:1352 69:4132 70:1272 71:662 72:2971 74:2586 75:1458 76:599 77:2399 78:1843 79:3171 80:2071 81:1727 82:1497 83:1234 84:1513 85:2994 86:756 87:1968 88:1231 89:3610 90:612 91:7672 92:2023 93:2585 94:3507 95:3956 96:1335 97:347 98:1164 99:744 100:75 101:1299 102:2643 103:31000 104:4508 105:485 106:846 107:2544 108:912 109:4391 110:2086 111:3283 112:2039 113:1490 114:1613 115:2011 116:1887 117:2556 118:2283 119:1940 120:1744 121:1045 122:2592 123:2137 124:1544 125:2348 128:1261 129:1059 130:988 131:1980 132:820 133:413 134:1904 135:294 136:862 137:938 138:2554 139:1545 140:1191 141:1473 142:1416 143:1476 144:1208 145:350 146:1886 147:1554 148:2277 149:1909 150:872 151:1146 152:1954 153:487 154:4174 155:1418 156:1672 157:1298 158:1010 159:2259 160:2554 161:1443 162:3540 163:1487 164:1587 165:1687 166:845 167:1735 168:3790 169:923 170:4561 171:883 172:3508 173:2960 174:1035 175:1158 176:3710 177:4642 178:3600 179:2204 180:2417 181:3404 182:3390 183:1935 184:2355 185:20091 186:4651 187:3953 188:4129 189:3563 190:9090 191:1449 192:10928 193:8818 194:7231 195:5110 196:3061 197:2396 198:5893 199:6091 200:7663 201:5874 202:10255 203:10001 204:4601 205:3517 206:3787 207:3383 208:4072 209:4838 210:4189 211:2386 212:4090 213:3551 214:1088 215:55 216:6573 217:2644 218:1265 219:400 220:1765 221:971 222:671 223:2109 End of report