Routing Table Report 08:00 +10GMT Tue 10 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 398257
Prefixes after maximum aggregation: 169916
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 196321
Total ASes present in the Internet Routing Table: 38296
Prefixes per ASN: 10.40
Origin-only ASes present in the Internet Routing Table: 33016
Origin ASes announcing only one prefix: 15489
Transit ASes present in the Internet Routing Table: 5280
Transit-only ASes present in the Internet Routing Table: 125
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1490
Unregistered ASNs in the Routing Table: 394
Number of 32-bit ASNs allocated by the RIRs: 2347
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5363
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 1432
Number of addresses announced to Internet: 2551760384
Equivalent to 152 /8s, 24 /16s and 198 /24s
Percentage of available address space announced: 68.8
Percentage of allocated address space announced: 68.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 167702
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93760
Total APNIC prefixes after maximum aggregation: 30805
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 91156
Unique aggregates announced from the APNIC address blocks: 39405
APNIC Region origin ASes present in the Internet Routing Table: 4632
APNIC Prefixes per ASN: 19.68
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 702
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 642897408
Equivalent to 38 /8s, 81 /16s and 214 /24s
Percentage of available APNIC address space announced: 81.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 148049
Total ARIN prefixes after maximum aggregation: 75307
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 119600
Unique aggregates announced from the ARIN address blocks: 49977
ARIN Region origin ASes present in the Internet Routing Table: 14887
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5677
ARIN Region transit ASes present in the Internet Routing Table: 1502
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 805853696
Equivalent to 48 /8s, 8 /16s and 90 /24s
Percentage of available ARIN address space announced: 64.0
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, 393216-394239
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,
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, 173/8,
174/8, 184/8, 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: 101298
Total RIPE prefixes after maximum aggregation: 53297
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 92532
Unique aggregates announced from the RIPE address blocks: 57229
RIPE Region origin ASes present in the Internet Routing Table: 16349
RIPE Prefixes per ASN: 5.66
RIPE Region origin ASes announcing only one prefix: 7954
RIPE Region transit ASes present in the Internet Routing Table: 2596
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 502398976
Equivalent to 29 /8s, 242 /16s and 0 /24s
Percentage of available RIPE address space announced: 80.9
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 39775
Total LACNIC prefixes after maximum aggregation: 8095
LACNIC Deaggregation factor: 4.91
Prefixes being announced from the LACNIC address blocks: 39536
Unique aggregates announced from the LACNIC address blocks: 19818
LACNIC Region origin ASes present in the Internet Routing Table: 1562
LACNIC Prefixes per ASN: 25.31
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 285
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 98884352
Equivalent to 5 /8s, 228 /16s and 219 /24s
Percentage of available LACNIC address space announced: 65.5
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8911
Total AfriNIC prefixes after maximum aggregation: 2116
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6990
Unique aggregates announced from the AfriNIC address blocks: 2154
AfriNIC Region origin ASes present in the Internet Routing Table: 521
AfriNIC Prefixes per ASN: 13.42
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 115
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 31525888
Equivalent to 1 /8s, 225 /16s and 12 /24s
Percentage of available AfriNIC address space announced: 47.0
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1924 11110 696 Korea Telecom (KIX)
17974 1706 503 63 PT Telekomunikasi Indonesia
7545 1651 301 85 TPG Internet Pty Ltd
4755 1578 387 164 TATA Communications formerly
9583 1242 94 539 Sify Limited
9829 1235 1041 30 National Internet Backbone
7552 1106 1062 11 Vietel Corporation
24560 1021 385 167 Bharti Airtel Ltd., Telemedia
4808 989 1947 284 CNCGROUP IP network China169
18101 948 131 160 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3432 3807 196 BellSouth.net Inc.
7029 3418 1016 169 Windstream Communications Inc
18566 2093 383 179 Covad Communications Co.
1785 1895 680 128 PaeTec Communications, Inc.
20115 1638 1561 617 Charter Communications
4323 1595 1060 381 tw telecom holdings, inc.
22773 1571 2910 111 Cox Communications Inc.
30036 1462 265 743 Mediacom Communications Corp
7018 1286 9807 835 AT&T Services, Inc.
11492 1185 216 365 CABLE ONE, INC.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1685 544 16 Corbina telecom
2118 1394 97 14 EUnet/RELCOM Autonomous Syste
34984 680 188 176 BILISIM TELEKOM
31148 679 37 9 FreeNet ISP
12479 652 658 57 France Telecom Espana SA
6830 640 1943 411 UPC Broadband
20940 633 205 498 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 533 8442 399 Deutsche Telekom AG
8551 506 360 81 Bezeq International
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1795 327 163 Types of queries are: POCs, o
28573 1772 1105 61 Types of queries are: POCs, o
6503 1522 418 66 Axtel, S.A.B. de C.V.
8151 1376 2999 344 Uninet S.A. de C.V.
7303 1353 827 189 Telecom Argentina S.A.
26615 903 697 32 Tim Celular S.A.
27947 662 74 99 Telconet S.A
11172 637 107 74 Alestra, S. de R.L. de C.V.
22047 584 326 15 Types of queries are: POCs, o
3816 574 242 100 Types of queries are: POCs, o
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1311 958 13 TEDATA
24863 845 274 32 LINKdotNET AS number
6713 492 649 18 Itissalat Al-MAGHRIB
3741 266 921 224 The Internet Solution
33776 201 12 21 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
24835 178 80 8 RAYA Telecom - Egypt
15706 168 32 6 Sudatel Internet Exchange Aut
16637 162 666 85 MTN Network Solutions
29571 161 15 16 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3432 3807 196 BellSouth.net Inc.
7029 3418 1016 169 Windstream Communications Inc
18566 2093 383 179 Covad Communications Co.
4766 1924 11110 696 Korea Telecom (KIX)
1785 1895 680 128 PaeTec Communications, Inc.
10620 1795 327 163 Types of queries are: POCs, o
28573 1772 1105 61 Types of queries are: POCs, o
17974 1706 503 63 PT Telekomunikasi Indonesia
8402 1685 544 16 Corbina telecom
7545 1651 301 85 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3418 3249 Windstream Communications Inc
18566 2093 1914 Covad Communications Co.
1785 1895 1767 PaeTec Communications, Inc.
28573 1772 1711 Types of queries are: POCs, o
8402 1685 1669 Corbina telecom
17974 1706 1643 PT Telekomunikasi Indonesia
10620 1795 1632 Types of queries are: POCs, o
7545 1651 1566 TPG Internet Pty Ltd
22773 1571 1460 Cox Communications Inc.
6503 1522 1456 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
54601 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati
54603 UNALLOCATED 8.18.203.0/24 14743 Internap Network Ser
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
54470 UNALLOCATED 8.30.171.0/24 3356 Level 3 Communicatio
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
Complete listing at http://thyme.rand.apnic.net/london/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 /8:20 /9:12 /10:28 /11:81 /12:236
/13:459 /14:829 /15:1480 /16:12136 /17:6255 /18:10406
/19:20601 /20:28650 /21:29487 /22:39911 /23:37365 /24:209757
/25:11 /26:20 /27:20 /28:152 /29:139 /30:65
/31:0 /32:137
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3060 3418 Windstream Communications Inc
6389 2149 3432 BellSouth.net Inc.
18566 2042 2093 Covad Communications Co.
10620 1690 1795 Types of queries are: POCs, o
8402 1662 1685 Corbina telecom
30036 1402 1462 Mediacom Communications Corp
6503 1281 1522 Axtel, S.A.B. de C.V.
11492 1148 1185 CABLE ONE, INC.
8452 1120 1311 TEDATA
1785 1067 1895 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:530 2:690 4:14 6:3 8:396 12:1963
13:1 14:596 15:12 16:3 17:7 20:8
23:157 24:1764 27:1263 31:992 32:53 33:2
34:2 36:8 37:323 38:787 40:119 41:3114
42:131 44:3 46:1465 47:3 49:347 50:538
52:12 54:7 55:9 56:3 57:28 58:914
59:511 60:277 61:1149 62:973 63:1987 64:4137
65:2255 66:4478 67:2036 68:1148 69:3153 70:907
71:469 72:1831 74:2598 75:494 76:314 77:964
78:1004 79:490 80:1208 81:901 82:659 83:546
84:478 85:1194 86:412 87:923 88:350 89:1639
90:297 91:4682 92:520 93:1398 94:1470 95:1109
96:355 97:318 98:889 99:34 100:7 101:163
103:934 106:104 107:182 108:201 109:1296 110:738
111:902 112:436 113:577 114:614 115:843 116:885
117:704 118:904 119:1177 120:340 121:787 122:1629
123:1104 124:1304 125:1252 128:523 129:184 130:250
131:591 132:165 133:21 134:233 135:62 136:208
137:174 138:354 139:145 140:466 141:243 142:368
143:394 144:510 145:65 146:482 147:273 148:744
149:299 150:152 151:176 152:460 153:172 154:6
155:445 156:213 157:335 158:175 159:450 160:341
161:235 162:347 163:179 164:567 165:389 166:561
167:464 168:815 169:126 170:845 171:127 172:4
173:1743 174:574 175:415 176:465 177:652 178:1323
180:1165 181:73 182:766 183:285 184:455 185:1
186:2183 187:1011 188:1188 189:1786 190:5463 192:5952
193:5612 194:4589 195:3606 196:1265 197:126 198:3576
199:4426 200:5710 201:1902 202:8238 203:8490 204:4267
205:2435 206:2654 207:2709 208:4029 209:3564 210:2679
211:1453 212:1978 213:1900 214:873 215:108 216:5066
217:1522 218:528 219:340 220:1222 221:536 222:293
223:316
End of report
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