Routing Table Report 08:00 +10GMT Thu 28 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 359317
Prefixes after maximum aggregation: 163792
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 181193
Total ASes present in the Internet Routing Table: 36850
Prefixes per ASN: 9.75
Origin-only ASes present in the Internet Routing Table: 31777
Origin ASes announcing only one prefix: 15303
Transit ASes present in the Internet Routing Table: 5073
Transit-only ASes present in the Internet Routing Table: 130
Average AS path length visible in the Internet Routing Table: 3.7
Max AS path length visible: 38
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 2351
Unregistered ASNs in the Routing Table: 639
Number of 32-bit ASNs allocated by the RIRs: 1594
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2947
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 116
Number of addresses announced to Internet: 2504144896
Equivalent to 149 /8s, 66 /16s and 56 /24s
Percentage of available address space announced: 67.6
Percentage of allocated address space announced: 67.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 148395
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86673
Total APNIC prefixes after maximum aggregation: 29089
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 84214
Unique aggregates announced from the APNIC address blocks: 37554
APNIC Region origin ASes present in the Internet Routing Table: 4471
APNIC Prefixes per ASN: 18.84
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 673
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 621890304
Equivalent to 37 /8s, 17 /16s and 75 /24s
Percentage of available APNIC address space announced: 78.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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: 140558
Total ARIN prefixes after maximum aggregation: 72591
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112704
Unique aggregates announced from the ARIN address blocks: 46741
ARIN Region origin ASes present in the Internet Routing Table: 14444
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5554
ARIN Region transit ASes present in the Internet Routing Table: 1459
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 803165696
Equivalent to 47 /8s, 223 /16s and 86 /24s
Percentage of available ARIN address space announced: 63.8
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: 87064
Total RIPE prefixes after maximum aggregation: 49336
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 80403
Unique aggregates announced from the RIPE address blocks: 52990
RIPE Region origin ASes present in the Internet Routing Table: 15799
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7884
RIPE Region transit ASes present in the Internet Routing Table: 2494
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 38
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 484345856
Equivalent to 28 /8s, 222 /16s and 136 /24s
Percentage of available RIPE address space announced: 78.0
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: 33181
Total LACNIC prefixes after maximum aggregation: 7557
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 32560
Unique aggregates announced from the LACNIC address blocks: 17223
LACNIC Region origin ASes present in the Internet Routing Table: 1481
LACNIC Prefixes per ASN: 21.99
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 265
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 86929152
Equivalent to 5 /8s, 46 /16s and 111 /24s
Percentage of available LACNIC address space announced: 57.6
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: 8204
Total AfriNIC prefixes after maximum aggregation: 1973
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6502
Unique aggregates announced from the AfriNIC address blocks: 2019
AfriNIC Region origin ASes present in the Internet Routing Table: 477
AfriNIC Prefixes per ASN: 13.63
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 102
Average AfriNIC Region AS path length visible: 3.6
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: 25759488
Equivalent to 1 /8s, 137 /16s and 15 /24s
Percentage of available AfriNIC address space announced: 38.4
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 1923 11037 642 Korea Telecom (KIX)
7545 1554 301 84 TPG Internet Pty Ltd
17974 1551 508 32 PT Telekomunikasi Indonesia
4755 1501 635 169 TATA Communications formerly
24560 1160 336 192 Bharti Airtel Ltd., Telemedia
9829 1121 936 41 National Internet Backbone
9583 1075 80 510 Sify Limited
17488 964 188 113 Hathway IP Over Cable Interne
4808 949 2004 274 CNCGROUP IP network China169
18101 934 116 139 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 3618 3818 238 BellSouth.net Inc.
18566 1912 365 240 Covad Communications Co.
1785 1813 681 121 PaeTec Communications, Inc.
7029 1643 1031 209 Windstream Communications Inc
4323 1616 1098 402 tw telecom holdings, inc.
20115 1590 1538 623 Charter Communications
19262 1411 4760 391 Verizon Online LLC
7018 1372 7101 898 AT&T Services, Inc.
22773 1353 2897 88 Cox Communications Inc.
2386 1258 520 906 AT&T Data Communications Serv
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
9116 540 326 31 Goldenlines main autonomous s
34984 533 106 186 BILISIM TELEKOM
6830 511 1788 316 UPC Broadband
3292 468 2078 403 TDC Data Networks
20940 464 134 358 Akamai Technologies European
12479 454 593 7 France Telecom Espana SA
8866 453 133 26 Bulgarian Telecommunication C
29049 431 31 49 AzerSat LLC.
3320 424 8151 370 Deutsche Telekom AG
8551 405 355 38 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 1561 287 164 Types of queries are: POCs, o
28573 1269 995 78 Types of queries are: POCs, o
8151 1252 2728 353 Uninet S.A. de C.V.
7303 1012 545 163 Telecom Argentina S.A.
6503 744 450 78 Axtel, S.A.B. de C.V.
14420 701 56 82 CORPORACION NACIONAL DE TELEC
22047 578 322 17 Types of queries are: POCs, o
3816 534 232 96 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 499 54 49 Telconet S.A
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
24863 796 147 34 LINKdotNET AS number
8452 792 445 11 TEDATA
15475 510 74 8 Nile Online
3741 265 937 226 The Internet Solution
6713 260 519 14 Itissalat Al-MAGHRIB
36992 259 415 15 Etisalat MISR
33776 226 13 5 Starcomms Nigeria Limited
15706 198 32 6 Sudatel Internet Exchange Aut
24835 177 78 10 RAYA Telecom - Egypt
29571 158 17 11 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 3618 3818 238 BellSouth.net Inc.
23456 2947 710 1580 32-bit ASN transition
4766 1923 11037 642 Korea Telecom (KIX)
18566 1912 365 240 Covad Communications Co.
1785 1813 681 121 PaeTec Communications, Inc.
7029 1643 1031 209 Windstream Communications Inc
4323 1616 1098 402 tw telecom holdings, inc.
20115 1590 1538 623 Charter Communications
10620 1561 287 164 Types of queries are: POCs, o
7545 1554 301 84 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
1785 1813 1692 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications Co.
17974 1551 1519 PT Telekomunikasi Indonesia
7545 1554 1470 TPG Internet Pty Ltd
7029 1643 1434 Windstream Communications Inc
10620 1561 1397 Types of queries are: POCs, o
23456 2947 1367 32-bit ASN transition
4755 1501 1332 TATA Communications formerly
4766 1923 1281 Korea Telecom (KIX)
22773 1353 1265 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
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,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T Services, Inc.
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
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 65535 Internet Assigned Numbers Aut
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
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
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 /8:21 /9:12 /10:27 /11:80 /12:233
/13:465 /14:798 /15:1403 /16:12023 /17:5869 /18:9749
/19:19605 /20:26140 /21:26223 /22:34656 /23:33543 /24:187963
/25:12 /26:19 /27:23 /28:159 /29:109 /30:59
/31:0 /32:126
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2239 3618 BellSouth.net Inc.
18566 1868 1912 Covad Communications Co.
23456 1457 2947 32-bit ASN transition
10620 1456 1561 Types of queries are: POCs, o
7029 1321 1643 Windstream Communications Inc
11492 1093 1139 CABLE ONE, INC.
7011 1056 1158 Frontier Communications of Am
1785 1053 1813 PaeTec Communications, Inc.
6478 963 991 AT&T Services, Inc.
22773 867 1353 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:338 2:48 4:16 5:1 6:3 8:338
12:1958 13:1 14:480 15:15 16:3 17:5
20:10 23:15 24:1674 27:848 31:509 32:59
33:4 34:2 36:4 38:725 40:104 41:2621
42:35 44:3 46:1048 47:3 49:204 50:370
52:13 54:2 55:5 56:2 57:33 58:820
59:480 60:376 61:1022 62:1040 63:1923 64:3968
65:2300 66:3885 67:1887 68:1105 69:3057 70:775
71:374 72:1869 74:2431 75:327 76:340 77:862
78:708 79:477 80:1111 81:839 82:506 83:469
84:686 85:1070 86:516 87:765 88:334 89:1538
90:224 91:3970 92:527 93:1058 94:1342 95:865
96:416 97:263 98:889 99:37 101:76 103:159
106:77 107:25 108:73 109:1023 110:604 111:714
112:294 113:404 114:556 115:665 116:965 117:654
118:802 119:1162 120:312 121:648 122:1599 123:968
124:1276 125:1277 128:208 129:163 130:164 131:576
132:105 133:21 134:206 135:52 136:213 137:136
138:300 139:113 140:456 141:254 142:387 143:418
144:476 145:55 146:449 147:215 148:602 149:248
150:158 151:189 152:339 153:182 154:4 155:399
156:195 157:324 158:140 159:387 160:313 161:196
162:307 163:155 164:504 165:364 166:531 167:433
168:741 169:151 170:834 171:81 172:1 173:1616
174:609 175:368 176:145 177:178 178:997 180:901
181:26 182:497 183:233 184:344 185:1 186:1310
187:743 188:894 189:952 190:4997 192:5864 193:4971
194:3510 195:3021 196:1217 197:42 198:3531 199:3952
200:5495 201:1473 202:8187 203:8367 204:4158 205:2300
206:2579 207:2727 208:3986 209:3414 210:2592 211:1445
212:2097 213:1745 214:788 215:70 216:4869 217:1631
218:537 219:344 220:1197 221:478 222:310 223:227
End of report
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