This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 21:25 GMT Sat 11 Oct, 2025 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1048512 Prefixes after maximum aggregation (per Origin AS): 395858 Deaggregation factor: 2.65 Unique aggregates announced (without unneeded subnets): 497168 Number of IPv4 prefixes with a valid ROA: 602019 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 446474 Total ASes present in the Internet Routing Table: 77571 Prefixes per ASN: 13.52 Origin-only ASes present in the Internet Routing Table: 66359 Origin ASes announcing only one prefix: 26682 Transit ASes present in the Internet Routing Table: 11212 Transit-only ASes present in the Internet Routing Table: 577 Paths with bogon ASNs present in the IPv4 Routing Table: 56 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 52 Max AS path prepend of ASN ( 59958) 48 Prefixes from unregistered ASNs in the Routing Table: 1000 Number of instances of unregistered ASNs: 1029 Number of 32-bit ASNs allocated by the RIRs: 47679 Number of 32-bit ASNs visible in the Routing Table: 39167 Prefixes from 32-bit ASNs in the Routing Table: 221105 Number of bogon 32-bit ASNs visible in the Routing Table: 72 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 327 Number of addresses announced to Internet: 3116777793 Equivalent to 185 /8s, 198 /16s and 65 /24s Percentage of available address space announced: 84.2 Percentage of allocated address space announced: 84.2 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: 345236 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 282801 Total APNIC prefixes after maximum aggregation: 80978 APNIC Deaggregation factor: 3.49 Prefixes being announced from the APNIC address blocks: 272701 Unique aggregates announced from the APNIC address blocks: 106205 APNIC Region origin ASes present in the Internet Routing Table: 14909 APNIC Prefixes per ASN: 18.29 APNIC Region origin ASes announcing only one prefix: 4499 APNIC Region transit ASes present in the Internet Routing Table: 2013 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 42 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10398 Number of APNIC addresses announced to Internet: 757005888 Equivalent to 45 /8s, 30 /16s and 254 /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: 302021 Total ARIN prefixes after maximum aggregation: 134492 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 302684 Unique aggregates announced from the ARIN address blocks: 143687 ARIN Region origin ASes present in the Internet Routing Table: 19343 ARIN Prefixes per ASN: 15.65 ARIN Region origin ASes announcing only one prefix: 7090 ARIN Region transit ASes present in the Internet Routing Table: 2002 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5358 Number of ARIN addresses announced to Internet: 1352295168 Equivalent to 80 /8s, 154 /16s and 99 /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: 292430 Total RIPE prefixes after maximum aggregation: 142411 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 292137 Unique aggregates announced from the RIPE address blocks: 181150 RIPE Region origin ASes present in the Internet Routing Table: 29131 RIPE Prefixes per ASN: 10.03 RIPE Region origin ASes announcing only one prefix: 12071 RIPE Region transit ASes present in the Internet Routing Table: 4045 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 52 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12795 Number of RIPE addresses announced to Internet: 732743425 Equivalent to 43 /8s, 172 /16s and 199 /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: 133458 Total LACNIC prefixes after maximum aggregation: 30365 LACNIC Deaggregation factor: 4.40 Prefixes being announced from the LACNIC address blocks: 129381 Unique aggregates announced from the LACNIC address blocks: 49328 LACNIC Region origin ASes present in the Internet Routing Table: 11314 LACNIC Prefixes per ASN: 11.44 LACNIC Region origin ASes announcing only one prefix: 2355 LACNIC Region transit ASes present in the Internet Routing Table: 2552 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 39 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9282 Number of LACNIC addresses announced to Internet: 170707712 Equivalent to 10 /8s, 44 /16s and 203 /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: 36802 Total AfriNIC prefixes after maximum aggregation: 6934 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 51282 Unique aggregates announced from the AfriNIC address blocks: 16499 AfriNIC Region origin ASes present in the Internet Routing Table: 1967 AfriNIC Prefixes per ASN: 26.07 AfriNIC Region origin ASes announcing only one prefix: 667 AfriNIC Region transit ASes present in the Internet Routing Table: 388 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 42 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1334 Number of AfriNIC addresses announced to Internet: 103809024 Equivalent to 6 /8s, 48 /16s and 0 /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 13876 8889 173 CHINAMOBILE-CN China Mobile Communication 7545 6173 834 594 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4869 4192 72 ERX-CERNET-BKB China Education and Resear 18403 4487 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4472 536 313 BBIL-AP BHARTI Airtel Ltd., IN 45899 4398 1874 55 VNPT-AS-VN VNPT Corp, VN 7552 3976 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3689 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3279 848 232 CMNET-JIANGSU-AP China Mobile communicati 24560 2920 862 506 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14294 40988 5354 AMAZON-02, US 174 4802 8767 802 COGENT-174, US 11492 4756 321 791 CABLEONE, US 22773 4014 3052 358 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3873 287 89 VIASAT-SP-BACKBONE, US 6327 3684 1320 82 SHAW, CA 396982 3272 4824 464 GOOGLE-CLOUD-PLATFORM, US 749 3220 54766 2471 DNIC-AS-00749, US 4155 3110 241 1739 USDA-1, US 16625 2896 1234 2163 AKAMAI-AS, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7402 1711 149 UNI2-AS, ES 47331 5126 717 3409 TTNET, TR 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 3955 372 2238 M247, RO 20940 3928 3395 139 AKAMAI-ASN1, NL 12389 3147 2315 867 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2514 180 1827 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 5384 2396 585 28 EMIRATES-INTERNET Emirates Internet, AE 203020 2036 223 1004 HOSTROYALE, IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12406 3282 574 UNINET, MX 10620 3476 468 1086 Telmex Colombia S.A., CO 13999 2517 508 351 Mega Cable, S.A. de C.V., MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 28573 1371 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1354 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1234 278 31 Techtel LMDS Comunicaciones Interactivas 6147 1168 371 23 Telefonica del Peru S.A.A., PE 22884 1064 68 363 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1011 2486 56 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1766 600 27 RAYA-AS, EG 36992 1512 1498 385 ETISALAT-MISR, EG 24863 1250 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 29571 1189 102 52 ORANGE-COTE-IVOIRE, CI 37069 1085 1096 13 MOBINIL, EG 36935 958 523 47 Vodafone-, EG 20011 634 172 254 NTT-DATA-Inc, ZA 36914 570 82 3 KENET-AS, KE 3741 563 725 318 NTT-DATA-Inc, ZA Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14294 40988 5354 AMAZON-02, US 9808 13876 8889 173 CHINAMOBILE-CN China Mobile Communication 8151 12406 3282 574 UNINET, MX 12479 7402 1711 149 UNI2-AS, ES 7545 6173 834 594 TPG-INTERNET-AP TPG Telecom Limited, AU 47331 5126 717 3409 TTNET, TR 4538 4869 4192 72 ERX-CERNET-BKB China Education and Resear 39891 4833 298 66 ALJAWWALSTC-AS, SA 174 4802 8767 802 COGENT-174, US 11492 4756 321 791 CABLEONE, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13876 13703 CHINAMOBILE-CN China Mobile Communications Grou 8151 12406 11832 UNINET, MX 12479 7402 7253 UNI2-AS, ES 7545 6173 5579 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4869 4797 ERX-CERNET-BKB China Education and Research Net 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4487 4462 FPT-AS-AP FPT Telecom Company, VN 45899 4398 4343 VNPT-AS-VN VNPT Corp, VN 9498 4472 4159 BBIL-AP BHARTI Airtel Ltd., IN 174 4802 4000 COGENT-174, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 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 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 397015 UNALLOCATED 8.44.246.0/24 12025 IMDC-AS12025, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, US 23.146.200.0/24 Origin: 7029 WINDSTREAM, US 23.146.200.0/24 Transit: 1299 TWELVE99 Arelion, fka Telia Carrier, SE Complete listing at https://bgp.nsrc.org/REN/Guam/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 /10:41 /11:93 /12:301 /13:585 /14:1208 /15:2148 /16:13932 /17:8484 /18:14361 /19:25612 /20:46693 /21:54526 /22:116014 /23:111683 /24:652033 /25:151 /26:109 /27:113 /28:21 /29:64 /30:11 /31:1 /32:298 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6600 12406 UNINET, MX 12479 6367 7402 UNI2-AS, ES 47331 4557 5126 TTNET, TR 11492 3569 4756 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3472 3684 SHAW, CA 7155 2831 3873 VIASAT-SP-BACKBONE, US 22773 2523 4014 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2381 14294 AMAZON-02, US 30036 2300 2640 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2501 2:1612 3:940 4:12 5:5212 6:170 7:6 8:1568 9:6 11:172 12:1245 13:565 14:2713 15:401 16:304 17:392 18:910 20:599 21:4 22:188 23:7941 24:2794 25:2 27:2866 29:19 31:3502 32:39 33:1 34:85 35:272 36:4480 37:4649 38:10676 39:1107 40:470 41:4480 42:2036 43:2898 44:400 45:20027 46:5341 47:385 49:2121 50:2059 51:596 52:1626 54:359 55:1182 56:11 57:289 58:2404 59:1403 60:1219 61:3182 62:3118 63:1785 64:5731 65:2154 66:5162 67:3179 68:1247 69:4153 70:1054 71:634 72:3045 74:2864 75:1520 76:598 77:2880 78:3085 79:1791 80:2289 81:2234 82:3520 83:1534 84:2014 85:3962 86:1198 87:2415 88:2446 89:4565 90:811 91:8486 92:2882 93:3010 94:4316 95:5140 96:1525 97:312 98:948 99:749 100:71 101:1502 102:4607 103:32842 104:5472 105:1047 106:908 107:2685 108:1225 109:4324 110:2301 111:3855 112:2699 113:1920 114:2100 115:2406 116:2159 117:3066 118:3087 119:2111 120:2346 121:1573 122:2983 123:2498 124:1824 125:2938 126:125 128:1657 129:981 130:1422 131:2259 132:844 133:462 134:1631 135:407 136:1497 137:1273 138:3029 139:1681 140:1662 141:1556 142:2176 143:2152 144:1279 145:634 146:2203 147:2156 148:2750 149:3003 150:1290 151:2614 152:2197 153:643 154:8219 155:2120 156:3321 157:1995 158:1433 159:2609 160:3675 161:2038 162:3985 163:2309 164:1981 165:2597 166:1568 167:2137 168:4052 169:791 170:5662 171:1071 172:4460 173:3444 174:908 175:1385 176:3926 177:5408 178:4405 179:2493 180:2789 181:4403 182:3781 183:2558 184:2106 185:21935 186:5722 187:4954 188:4528 189:4599 190:9910 191:1667 192:11448 193:9529 194:8001 195:5832 196:3438 197:3420 198:6141 199:8808 200:8620 201:6489 202:11072 203:10918 204:4597 205:3654 206:4503 207:3624 208:4291 209:5366 210:5136 211:2910 212:4923 213:3971 214:1032 215:52 216:7033 217:3508 218:1642 219:624 220:2203 221:1253 222:1005 223:3117 End of report