Routing Table Report 08:00 +10GMT Sun 06 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 374798
Prefixes after maximum aggregation: 164627
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 187160
Total ASes present in the Internet Routing Table: 37479
Prefixes per ASN: 10.00
Origin-only ASes present in the Internet Routing Table: 32330
Origin ASes announcing only one prefix: 15484
Transit ASes present in the Internet Routing Table: 5149
Transit-only ASes present in the Internet Routing Table: 128
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: 2353
Unregistered ASNs in the Routing Table: 927
Number of 32-bit ASNs allocated by the RIRs: 1930
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3675
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 85
Number of addresses announced to Internet: 2507206144
Equivalent to 149 /8s, 112 /16s and 238 /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: 91.6
Total number of prefixes smaller than registry allocations: 156731
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89723
Total APNIC prefixes after maximum aggregation: 29738
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87126
Unique aggregates announced from the APNIC address blocks: 38258
APNIC Region origin ASes present in the Internet Routing Table: 4551
APNIC Prefixes per ASN: 19.14
APNIC Region origin ASes announcing only one prefix: 1286
APNIC Region transit ASes present in the Internet Routing Table: 693
Average APNIC Region AS path length visible: 4.0
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: 629322496
Equivalent to 37 /8s, 130 /16s and 179 /24s
Percentage of available APNIC address space announced: 79.8
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: 144646
Total ARIN prefixes after maximum aggregation: 74011
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 116879
Unique aggregates announced from the ARIN address blocks: 48476
ARIN Region origin ASes present in the Internet Routing Table: 14661
ARIN Prefixes per ASN: 7.97
ARIN Region origin ASes announcing only one prefix: 5626
ARIN Region transit ASes present in the Internet Routing Table: 1490
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804739328
Equivalent to 47 /8s, 247 /16s and 89 /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: 92160
Total RIPE prefixes after maximum aggregation: 50971
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84575
Unique aggregates announced from the RIPE address blocks: 54487
RIPE Region origin ASes present in the Internet Routing Table: 16074
RIPE Prefixes per ASN: 5.26
RIPE Region origin ASes announcing only one prefix: 7968
RIPE Region transit ASes present in the Internet Routing Table: 2520
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: 491674368
Equivalent to 29 /8s, 78 /16s and 91 /24s
Percentage of available RIPE address space announced: 79.2
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: 35364
Total LACNIC prefixes after maximum aggregation: 7807
LACNIC Deaggregation factor: 4.53
Prefixes being announced from the LACNIC address blocks: 34947
Unique aggregates announced from the LACNIC address blocks: 18551
LACNIC Region origin ASes present in the Internet Routing Table: 1525
LACNIC Prefixes per ASN: 22.92
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 267
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: 92799488
Equivalent to 5 /8s, 136 /16s and 2 /24s
Percentage of available LACNIC address space announced: 61.5
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: 8541
Total AfriNIC prefixes after maximum aggregation: 2024
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6619
Unique aggregates announced from the AfriNIC address blocks: 1986
AfriNIC Region origin ASes present in the Internet Routing Table: 496
AfriNIC Prefixes per ASN: 13.34
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 109
Average AfriNIC Region AS path length visible: 3.3
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: 27601920
Equivalent to 1 /8s, 165 /16s and 44 /24s
Percentage of available AfriNIC address space announced: 41.1
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 1948 11121 665 Korea Telecom (KIX)
7545 1610 303 86 TPG Internet Pty Ltd
17974 1604 511 36 PT Telekomunikasi Indonesia
4755 1499 377 172 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1093 80 501 Sify Limited
7552 987 1062 11 Vietel Corporation
4808 973 2009 278 CNCGROUP IP network China169
24560 964 343 218 Bharti Airtel Ltd., Telemedia
18101 955 135 150 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 3548 3815 222 BellSouth.net Inc.
7029 2370 1042 211 Windstream Communications Inc
18566 2094 382 176 Covad Communications Co.
1785 1847 680 122 PaeTec Communications, Inc.
4323 1621 1093 388 tw telecom holdings, inc.
20115 1595 1547 621 Charter Communications
22773 1487 2909 103 Cox Communications Inc.
30036 1404 253 671 Mediacom Communications Corp
19262 1395 4728 400 Verizon Online LLC
7018 1323 7063 869 AT&T Services, 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 1445 416 14 Corbina telecom
6830 647 1927 412 UPC Broadband
34984 595 110 183 BILISIM TELEKOM
20940 551 182 433 Akamai Technologies European
12479 547 628 51 France Telecom Espana SA
9116 541 326 31 Goldenlines main autonomous s
3320 507 8169 387 Deutsche Telekom AG
3292 483 2074 408 TDC Data Networks
8866 461 133 26 Bulgarian Telecommunication C
31148 406 22 114 FreeNet ISP
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 1699 314 156 Types of queries are: POCs, o
28573 1474 1043 79 Types of queries are: POCs, o
8151 1289 2918 343 Uninet S.A. de C.V.
7303 1236 751 171 Telecom Argentina S.A.
22047 580 322 17 Types of queries are: POCs, o
27947 580 72 85 Telconet S.A
6503 555 434 69 Axtel, S.A.B. de C.V.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 540 233 95 Types of queries are: POCs, o
11172 525 102 98 Alestra, S. de R.L. de C.V.
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 797 146 33 LINKdotNET AS number
8452 652 446 12 TEDATA
15475 455 74 8 Nile Online
36992 284 415 20 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 240 32 6 Sudatel Internet Exchange Aut
6713 235 519 14 Itissalat Al-MAGHRIB
33776 220 12 12 Starcomms Nigeria Limited
29571 218 17 13 Ci Telecom Autonomous system
12258 197 28 58 Vodacom Internet Company
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 3548 3815 222 BellSouth.net Inc.
7029 2370 1042 211 Windstream Communications Inc
18566 2094 382 176 Covad Communications Co.
4766 1948 11121 665 Korea Telecom (KIX)
1785 1847 680 122 PaeTec Communications, Inc.
10620 1699 314 156 Types of queries are: POCs, o
4323 1621 1093 388 tw telecom holdings, inc.
7545 1610 303 86 TPG Internet Pty Ltd
17974 1604 511 36 PT Telekomunikasi Indonesia
20115 1595 1547 621 Charter Communications
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 2370 2159 Windstream Communications Inc
18566 2094 1918 Covad Communications Co.
1785 1847 1725 PaeTec Communications, Inc.
17974 1604 1568 PT Telekomunikasi Indonesia
10620 1699 1543 Types of queries are: POCs, o
7545 1610 1524 TPG Internet Pty Ltd
8402 1445 1431 Corbina telecom
28573 1474 1395 Types of queries are: POCs, o
22773 1487 1384 Cox Communications Inc.
4755 1499 1327 TATA Communications formerly
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.
25639 UNALLOCATED 12.41.169.0/24 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
128.0.0.0/16 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
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 37345 MEDALLION Communications
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 /8:20 /9:12 /10:27 /11:81 /12:237
/13:465 /14:807 /15:1417 /16:11982 /17:6039 /18:10033
/19:20038 /20:27524 /21:27605 /22:36868 /23:34882 /24:196234
/25:12 /26:21 /27:22 /28:154 /29:126 /30:63
/31:0 /32:129
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2187 3548 BellSouth.net Inc.
18566 2044 2094 Covad Communications Co.
7029 2022 2370 Windstream Communications Inc
10620 1594 1699 Types of queries are: POCs, o
8402 1420 1445 Corbina telecom
30036 1364 1404 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1057 1847 PaeTec Communications, Inc.
7011 1051 1169 Frontier Communications of Am
22773 949 1487 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:417 2:476 4:15 5:1 6:3 8:357
12:1954 13:1 14:530 15:11 16:3 17:7
20:9 23:58 24:1678 27:1021 31:664 32:60
33:2 34:2 36:4 38:750 40:110 41:2686
42:55 44:3 46:1027 47:3 49:295 50:444
52:13 55:7 56:2 57:43 58:856 59:484
60:359 61:1028 62:1097 63:1958 64:4021 65:2301
66:4263 67:2003 68:1163 69:3181 70:879 71:385
72:1803 74:2603 75:388 76:316 77:963 78:867
79:471 80:1120 81:819 82:525 83:526 84:620
85:1151 86:406 87:974 88:357 89:1591 90:237
91:4253 92:536 93:1536 94:1301 95:1073 96:422
97:286 98:935 99:37 101:106 103:429 106:8
107:84 108:72 109:1152 110:639 111:794 112:334
113:466 114:608 115:678 116:865 117:696 118:869
119:1225 120:342 121:669 122:1560 123:1010 124:1294
125:1302 128:211 129:181 130:158 131:623 132:142
133:21 134:213 135:54 136:210 137:139 138:286
139:120 140:459 141:316 142:371 143:407 144:473
145:62 146:459 147:224 148:615 149:266 150:164
151:194 152:445 153:178 154:6 155:386 156:205
157:329 158:154 159:417 160:333 161:204 162:368
163:163 164:507 165:367 166:540 167:441 168:804
169:144 170:880 171:87 172:4 173:1710 174:678
175:400 176:280 177:372 178:1083 180:1134 181:38
182:638 183:212 184:388 185:1 186:1326 187:787
188:1059 189:1146 190:5134 192:5879 193:5049 194:3557
195:3130 196:1251 197:168 198:3575 199:4165 200:5439
201:1689 202:8208 203:8377 204:4235 205:2348 206:2586
207:2752 208:4028 209:3551 210:2640 211:1448 212:2099
213:1783 214:808 215:94 216:4890 217:1597 218:555
219:335 220:1214 221:501 222:296 223:264
End of report