Routing Table Report 08:00 +10GMT Thu 10 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 375663
Prefixes after maximum aggregation: 164696
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 187447
Total ASes present in the Internet Routing Table: 37514
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 32369
Origin ASes announcing only one prefix: 15493
Transit ASes present in the Internet Routing Table: 5145
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: 2379
Unregistered ASNs in the Routing Table: 934
Number of 32-bit ASNs allocated by the RIRs: 1934
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3677
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 85
Number of addresses announced to Internet: 2508126464
Equivalent to 149 /8s, 126 /16s and 249 /24s
Percentage of available address space announced: 67.7
Percentage of allocated address space announced: 67.7
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: 157192
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90009
Total APNIC prefixes after maximum aggregation: 29788
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87403
Unique aggregates announced from the APNIC address blocks: 38358
APNIC Region origin ASes present in the Internet Routing Table: 4554
APNIC Prefixes per ASN: 19.19
APNIC Region origin ASes announcing only one prefix: 1283
APNIC Region transit ASes present in the Internet Routing Table: 690
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: 629641728
Equivalent to 37 /8s, 135 /16s and 146 /24s
Percentage of available APNIC address space announced: 79.9
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: 145013
Total ARIN prefixes after maximum aggregation: 73972
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117200
Unique aggregates announced from the ARIN address blocks: 48457
ARIN Region origin ASes present in the Internet Routing Table: 14674
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5628
ARIN Region transit ASes present in the Internet Routing Table: 1491
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: 804731648
Equivalent to 47 /8s, 247 /16s and 59 /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: 92135
Total RIPE prefixes after maximum aggregation: 50990
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84591
Unique aggregates announced from the RIPE address blocks: 54523
RIPE Region origin ASes present in the Internet Routing Table: 16085
RIPE Prefixes per ASN: 5.26
RIPE Region origin ASes announcing only one prefix: 7979
RIPE Region transit ASes present in the Internet Routing Table: 2517
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: 491754752
Equivalent to 29 /8s, 79 /16s and 149 /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: 35604
Total LACNIC prefixes after maximum aggregation: 7846
LACNIC Deaggregation factor: 4.54
Prefixes being announced from the LACNIC address blocks: 35187
Unique aggregates announced from the LACNIC address blocks: 18580
LACNIC Region origin ASes present in the Internet Routing Table: 1531
LACNIC Prefixes per ASN: 22.98
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: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 92879104
Equivalent to 5 /8s, 137 /16s and 57 /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: 8528
Total AfriNIC prefixes after maximum aggregation: 2023
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6615
Unique aggregates announced from the AfriNIC address blocks: 1986
AfriNIC Region origin ASes present in the Internet Routing Table: 497
AfriNIC Prefixes per ASN: 13.31
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 110
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: 27684864
Equivalent to 1 /8s, 166 /16s and 112 /24s
Percentage of available AfriNIC address space announced: 41.3
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 1950 11121 665 Korea Telecom (KIX)
7545 1619 303 87 TPG Internet Pty Ltd
17974 1595 511 36 PT Telekomunikasi Indonesia
4755 1533 377 172 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1097 81 497 Sify Limited
7552 987 1062 11 Vietel Corporation
4808 977 2009 279 CNCGROUP IP network China169
24560 964 343 218 Bharti Airtel Ltd., Telemedia
18101 954 119 149 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 3546 3815 221 BellSouth.net Inc.
7029 2924 1042 211 Windstream Communications Inc
18566 2094 382 176 Covad Communications Co.
1785 1850 680 122 PaeTec Communications, Inc.
4323 1620 1093 388 tw telecom holdings, inc.
20115 1594 1546 623 Charter Communications
22773 1491 2909 103 Cox Communications Inc.
30036 1409 254 669 Mediacom Communications Corp
19262 1395 4728 400 Verizon Online LLC
7018 1325 7063 871 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 1357 416 14 Corbina telecom
6830 647 1927 412 UPC Broadband
34984 595 110 183 BILISIM TELEKOM
20940 552 182 434 Akamai Technologies European
12479 548 629 52 France Telecom Espana SA
9116 541 326 31 Goldenlines main autonomous s
3320 506 8168 390 Deutsche Telekom AG
3292 482 2058 407 TDC Data Networks
8866 461 133 26 Bulgarian Telecommunication C
31148 407 22 115 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 1481 1043 79 Types of queries are: POCs, o
8151 1298 2918 341 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 578 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 541 233 95 Types of queries are: POCs, o
11172 525 102 97 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 790 146 33 LINKdotNET AS number
8452 658 446 12 TEDATA
15475 455 74 8 Nile Online
36992 285 415 20 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 240 32 6 Sudatel Internet Exchange Aut
33776 239 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
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 3546 3815 221 BellSouth.net Inc.
7029 2924 1042 211 Windstream Communications Inc
18566 2094 382 176 Covad Communications Co.
4766 1950 11121 665 Korea Telecom (KIX)
1785 1850 680 122 PaeTec Communications, Inc.
10620 1699 314 156 Types of queries are: POCs, o
4323 1620 1093 388 tw telecom holdings, inc.
7545 1619 303 87 TPG Internet Pty Ltd
17974 1595 511 36 PT Telekomunikasi Indonesia
20115 1594 1546 623 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 2924 2713 Windstream Communications Inc
18566 2094 1918 Covad Communications Co.
1785 1850 1728 PaeTec Communications, Inc.
17974 1595 1559 PT Telekomunikasi Indonesia
10620 1699 1543 Types of queries are: POCs, o
7545 1619 1532 TPG Internet Pty Ltd
28573 1481 1402 Types of queries are: POCs, o
22773 1491 1388 Cox Communications Inc.
4755 1533 1361 TATA Communications formerly
8402 1357 1343 Corbina telecom
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 /14:808 /15:1420 /16:11985 /17:6053 /18:10044
/19:20074 /20:27591 /21:27693 /22:37130 /23:34991 /24:196496
/25:12 /26:21 /27:22 /28:156 /29:127 /30:63
/31:0 /32:135
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2540 2924 Windstream Communications Inc
6389 2186 3546 BellSouth.net Inc.
18566 2044 2094 Covad Communications Co.
10620 1594 1699 Types of queries are: POCs, o
30036 1369 1409 Mediacom Communications Corp
8402 1333 1357 Corbina telecom
11492 1117 1154 CABLE ONE, INC.
1785 1057 1850 PaeTec Communications, Inc.
7011 1051 1168 Frontier Communications of Am
22773 953 1491 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:408 2:440 4:15 5:1 6:3 8:356
12:1961 13:1 14:533 15:11 16:3 17:7
20:9 23:63 24:1678 27:1025 31:667 32:60
33:2 34:2 36:4 38:751 40:110 41:2680
42:59 44:3 46:1029 47:3 49:295 50:448
52:13 55:8 56:2 57:43 58:868 59:491
60:358 61:1025 62:1098 63:1960 64:4031 65:2303
66:4310 67:2016 68:1172 69:3142 70:904 71:384
72:1808 74:2630 75:426 76:318 77:881 78:864
79:477 80:1132 81:841 82:521 83:527 84:621
85:1151 86:407 87:933 88:356 89:1577 90:237
91:4258 92:536 93:1527 94:1298 95:1041 96:422
97:286 98:938 99:37 101:109 103:446 106:8
107:88 108:73 109:1174 110:643 111:803 112:354
113:464 114:610 115:685 116:860 117:696 118:871
119:1218 120:345 121:676 122:1567 123:1007 124:1295
125:1301 128:212 129:175 130:157 131:622 132:143
133:21 134:213 135:54 136:210 137:139 138:287
139:118 140:467 141:317 142:370 143:407 144:488
145:64 146:462 147:221 148:617 149:271 150:157
151:194 152:445 153:175 154:6 155:389 156:205
157:329 158:156 159:418 160:331 161:205 162:368
163:164 164:506 165:367 166:541 167:442 168:801
169:144 170:880 171:87 172:4 173:1735 174:701
175:405 176:290 177:366 178:1089 180:1139 181:37
182:642 183:228 184:389 185:1 186:1398 187:772
188:962 189:1154 190:5187 192:5880 193:5048 194:3548
195:3106 196:1250 197:171 198:3574 199:4167 200:5453
201:1691 202:8235 203:8419 204:4238 205:2353 206:2578
207:2752 208:4018 209:3561 210:2643 211:1450 212:2081
213:1796 214:787 215:96 216:4887 217:1603 218:555
219:337 220:1214 221:501 222:296 223:266
End of report
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