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 04 Apr, 2026 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: 1069235 Prefixes after maximum aggregation (per Origin AS): 400088 Deaggregation factor: 2.67 Unique aggregates announced (without unneeded subnets): 512079 Number of IPv4 prefixes with a valid ROA: 641921 Number of IPv4 prefixes with an invalid ROA: 20 Number of IPv4 prefixes with no ROA: 427294 Total ASes present in the Internet Routing Table: 78344 Prefixes per ASN: 13.65 Origin-only ASes present in the Internet Routing Table: 67007 Origin ASes announcing only one prefix: 26977 Transit ASes present in the Internet Routing Table: 11337 Transit-only ASes present in the Internet Routing Table: 585 Paths with bogon ASNs present in the IPv4 Routing Table: 52 Average AS path length visible in the Internet Routing Table: 5.5 Max AS path length visible: 69 Max AS path prepend of ASN (269326) 61 Prefixes from unregistered ASNs in the Routing Table: 1029 Number of instances of unregistered ASNs: 1059 Number of 32-bit ASNs allocated by the RIRs: 49218 Number of 32-bit ASNs visible in the Routing Table: 40322 Prefixes from 32-bit ASNs in the Routing Table: 234805 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 314 Number of addresses announced to Internet: 3113346434 Equivalent to 185 /8s, 145 /16s and 229 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 348415 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 295014 Total APNIC prefixes after maximum aggregation: 83516 APNIC Deaggregation factor: 3.53 Prefixes being announced from the APNIC address blocks: 282142 Unique aggregates announced from the APNIC address blocks: 107540 APNIC Region origin ASes present in the Internet Routing Table: 15215 APNIC Prefixes per ASN: 18.54 APNIC Region origin ASes announcing only one prefix: 4642 APNIC Region transit ASes present in the Internet Routing Table: 2066 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 53 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10736 Number of APNIC addresses announced to Internet: 758340160 Equivalent to 45 /8s, 51 /16s and 90 /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: 305726 Total ARIN prefixes after maximum aggregation: 135874 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 305004 Unique aggregates announced from the ARIN address blocks: 146604 ARIN Region origin ASes present in the Internet Routing Table: 19435 ARIN Prefixes per ASN: 15.69 ARIN Region origin ASes announcing only one prefix: 7105 ARIN Region transit ASes present in the Internet Routing Table: 1996 Average ARIN Region AS path length visible: 4.9 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5547 Number of ARIN addresses announced to Internet: 1348389634 Equivalent to 80 /8s, 94 /16s and 203 /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: 289428 Total RIPE prefixes after maximum aggregation: 142128 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 291678 Unique aggregates announced from the RIPE address blocks: 188238 RIPE Region origin ASes present in the Internet Routing Table: 29386 RIPE Prefixes per ASN: 9.93 RIPE Region origin ASes announcing only one prefix: 12147 RIPE Region transit ASes present in the Internet Routing Table: 4070 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 36 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13248 Number of RIPE addresses announced to Internet: 733155200 Equivalent to 43 /8s, 179 /16s and 15 /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: 138401 Total LACNIC prefixes after maximum aggregation: 30778 LACNIC Deaggregation factor: 4.50 Prefixes being announced from the LACNIC address blocks: 133727 Unique aggregates announced from the LACNIC address blocks: 50153 LACNIC Region origin ASes present in the Internet Routing Table: 11390 LACNIC Prefixes per ASN: 11.74 LACNIC Region origin ASes announcing only one prefix: 2395 LACNIC Region transit ASes present in the Internet Routing Table: 2619 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9409 Number of LACNIC addresses announced to Internet: 169878976 Equivalent to 10 /8s, 32 /16s and 37 /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: 39637 Total AfriNIC prefixes after maximum aggregation: 7144 AfriNIC Deaggregation factor: 5.55 Prefixes being announced from the AfriNIC address blocks: 56370 Unique aggregates announced from the AfriNIC address blocks: 19279 AfriNIC Region origin ASes present in the Internet Routing Table: 2016 AfriNIC Prefixes per ASN: 27.96 AfriNIC Region origin ASes announcing only one prefix: 688 AfriNIC Region transit ASes present in the Internet Routing Table: 391 Average AfriNIC Region AS path length visible: 6.2 Max AfriNIC Region AS path length visible: 63 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1382 Number of AfriNIC addresses announced to Internet: 103354368 Equivalent to 6 /8s, 41 /16s and 16 /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 14000 9090 158 CHINAMOBILE-CN China Mobile Communication 7545 5919 828 498 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4973 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4882 548 318 BBIL-AP BHARTI Airtel Ltd., IN 18403 4546 347 25 FPT-AS-AP FPT Telecom Company, VN 45899 4441 1873 53 VNPT-AS-VN VNPT Corp, VN 7552 4058 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3664 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3617 907 226 CMNET-JIANGSU-AP China Mobile communicati 24560 3007 861 519 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 14525 41230 5643 AMAZON-02 - Amazon.com, Inc., US 174 4942 8765 816 COGENT-174 - Cogent Communications, LLC, 22773 4782 3117 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4663 309 1029 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3721 1305 77 SHAW - Shaw Communications, CA 396982 3295 4856 487 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2705 222 893 AS-COLOCROSSING - HostPapa, US 30036 2661 364 329 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7172 1711 149 UNI2-AS, ES 39891 4972 306 72 ALJAWWALSTC-AS, SA 20940 3850 3389 112 AKAMAI-ASN1, NL 9009 3821 353 2245 M247, RO 12389 3150 2322 873 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2702 195 1985 CDNEXT, GB 34984 2450 365 571 TELLCOM-AS, TR 8452 1730 1852 17 TE-AS TE-AS, EG 203020 1632 248 807 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA 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 12827 3294 609 UNINET, MX 10620 3452 457 1103 Telmex Colombia S.A., CO 13999 2463 506 344 Mega Cable, S.A. de C.V., MX 11830 1948 369 65 Instituto Costarricense de Electricidad y 28573 1585 2431 268 Claro NXT Telecomunicacoes Ltda, BR 11664 1461 278 33 Techtel LMDS Comunicaciones Interactivas 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1243 371 22 INTEGRATEL PERU S.A.A., PE 28202 1089 52 9 MASTER SA, BR 26615 1058 2393 95 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 2025 648 34 RAYA-AS, EG 36992 1855 1532 338 ETISALAT-MISR, EG 20011 1342 206 352 NTT-DATA-Inc, ZA 24863 1292 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1229 521 44 Vodafone-, EG 37069 1116 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 3741 554 724 321 NTT-DATA-Inc, ZA 36914 553 82 3 KENET-AS, KE 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 14525 41230 5643 AMAZON-02 - Amazon.com, Inc., US 9808 14000 9090 158 CHINAMOBILE-CN China Mobile Communication 8151 12827 3294 609 UNINET, MX 12479 7172 1711 149 UNI2-AS, ES 7545 5919 828 498 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4973 4192 76 ERX-CERNET-BKB China Education and Resear 39891 4972 306 72 ALJAWWALSTC-AS, SA 174 4942 8765 816 COGENT-174 - Cogent Communications, LLC, 9498 4882 548 318 BBIL-AP BHARTI Airtel Ltd., IN 22773 4782 3117 365 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 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 14000 13842 CHINAMOBILE-CN China Mobile Communications Grou 8151 12827 12218 UNINET, MX 12479 7172 7023 UNI2-AS, ES 7545 5919 5421 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 4900 ALJAWWALSTC-AS, SA 4538 4973 4897 ERX-CERNET-BKB China Education and Research Net 9498 4882 4564 BBIL-AP BHARTI Airtel Ltd., IN 18403 4546 4521 FPT-AS-AP FPT Telecom Company, VN 22773 4782 4417 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 45899 4441 4388 VNPT-AS-VN VNPT Corp, VN 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 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 33491 COMCAST-33491 - Comcast 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3 - Level 3 Parent 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 - Hurricane Electric LLC, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 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, 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 3605 ERX-KUENTOS-AS Guam Cablevision, LLC., G 23.139.61.0/24 Origin: 401731 ROLL-TIDE - The University of Alabama At 23.139.61.0/24 Transit: 19684 OGITAL - Latigo, LLC, US 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 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 /10:40 /11:95 /12:298 /13:585 /14:1197 /15:2106 /16:13739 /17:8496 /18:14007 /19:26389 /20:47755 /21:53771 /22:115734 /23:113292 /24:670968 /25:74 /26:84 /27:116 /28:41 /29:65 /30:9 /31:3 /32:341 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 7001 12827 UNINET, MX 12479 6114 7172 UNI2-AS, ES 39891 3656 4972 ALJAWWALSTC-AS, SA 11492 3523 4663 CABLEONE - CABLE ONE, INC., US 6327 3501 3721 SHAW - Shaw Communications, CA 22773 3055 4782 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2619 14525 AMAZON-02 - Amazon.com, Inc., US 30036 2312 2661 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2232 3452 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2571 2:1782 3:993 4:7 5:5213 6:196 7:6 8:1524 9:38 11:172 12:1189 13:674 14:2747 15:456 16:170 17:427 18:912 20:613 21:4 22:188 23:8241 24:2857 25:2 27:2886 28:1 29:19 31:3487 32:40 34:91 35:285 36:4680 37:4467 38:11213 39:1281 40:422 41:4668 42:2234 43:3175 44:450 45:20849 46:4910 47:429 48:120 49:2268 50:2004 51:626 52:1293 54:272 55:1108 56:11 57:327 58:2584 59:1627 60:1182 61:3400 62:3174 63:1752 64:6307 65:2137 66:6066 67:3264 68:1499 69:4208 70:1051 71:616 72:3143 74:3027 75:1485 76:592 77:2930 78:1954 79:1793 80:2356 81:2232 82:4035 83:1453 84:2127 85:3789 86:1096 87:2466 88:1353 89:4724 90:785 91:8488 92:2822 93:3025 94:4422 95:4667 96:1448 97:315 98:944 99:807 100:68 101:1646 102:5047 103:32865 104:5336 105:1085 106:931 107:2866 108:1232 109:4255 110:2307 111:4207 112:3192 113:2098 114:2295 115:2362 116:2219 117:3542 118:3057 119:2207 120:2752 121:1640 122:3029 123:2463 124:1854 125:3051 126:125 128:1624 129:1000 130:1639 131:2575 132:819 133:489 134:1670 135:611 136:1608 137:1368 138:3522 139:1711 140:1783 141:1732 142:2525 143:2206 144:1713 145:644 146:2212 147:2191 148:2763 149:3159 150:1369 151:2766 152:2326 153:1084 154:9839 155:2330 156:4501 157:2311 158:1520 159:2818 160:3882 161:1963 162:4042 163:2500 164:2072 165:2667 166:1275 167:2294 168:4238 169:873 170:5818 171:1142 172:4527 173:3472 174:881 175:1409 176:3898 177:5844 178:4397 179:2654 180:3135 181:4640 182:4038 183:2857 184:2021 185:21959 186:6246 187:5476 188:4646 189:4743 190:10049 191:2017 192:11552 193:9639 194:7953 195:5969 196:3582 197:3894 198:6157 199:6072 200:8444 201:6599 202:11221 203:10921 204:4766 205:3751 206:4592 207:3860 208:4410 209:5442 210:5245 211:2940 212:5040 213:4141 214:1056 215:47 216:7287 217:3579 218:2006 219:658 220:2340 221:1335 222:1430 223:3463 End of report