Routing Table Report 08:00 +10GMT Tue 24 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 386819
Prefixes after maximum aggregation: 167041
Deaggregation factor: 2.32
Unique aggregates announced to Internet: 191265
Total ASes present in the Internet Routing Table: 37880
Prefixes per ASN: 10.21
Origin-only ASes present in the Internet Routing Table: 32633
Origin ASes announcing only one prefix: 15533
Transit ASes present in the Internet Routing Table: 5247
Transit-only ASes present in the Internet Routing Table: 124
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2884
Unregistered ASNs in the Routing Table: 1165
Number of 32-bit ASNs allocated by the RIRs: 2211
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4544
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2528796160
Equivalent to 150 /8s, 186 /16s and 94 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 162262
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91994
Total APNIC prefixes after maximum aggregation: 30122
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89285
Unique aggregates announced from the APNIC address blocks: 39102
APNIC Region origin ASes present in the Internet Routing Table: 4584
APNIC Prefixes per ASN: 19.48
APNIC Region origin ASes announcing only one prefix: 1256
APNIC Region transit ASes present in the Internet Routing Table: 705
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 634784768
Equivalent to 37 /8s, 214 /16s and 12 /24s
Percentage of available APNIC address space announced: 80.5
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: 146458
Total ARIN prefixes after maximum aggregation: 74714
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118690
Unique aggregates announced from the ARIN address blocks: 49109
ARIN Region origin ASes present in the Internet Routing Table: 14792
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5669
ARIN Region transit ASes present in the Internet Routing Table: 1494
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: 805011456
Equivalent to 47 /8s, 251 /16s and 128 /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: 97680
Total RIPE prefixes after maximum aggregation: 52095
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 89539
Unique aggregates announced from the RIPE address blocks: 55739
RIPE Region origin ASes present in the Internet Routing Table: 16275
RIPE Prefixes per ASN: 5.50
RIPE Region origin ASes announcing only one prefix: 8002
RIPE Region transit ASes present in the Internet Routing Table: 2575
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 497946112
Equivalent to 29 /8s, 174 /16s and 14 /24s
Percentage of available RIPE address space announced: 80.2
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: 36685
Total LACNIC prefixes after maximum aggregation: 7953
LACNIC Deaggregation factor: 4.61
Prefixes being announced from the LACNIC address blocks: 36470
Unique aggregates announced from the LACNIC address blocks: 19324
LACNIC Region origin ASes present in the Internet Routing Table: 1554
LACNIC Prefixes per ASN: 23.47
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 278
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 95548160
Equivalent to 5 /8s, 177 /16s and 243 /24s
Percentage of available LACNIC address space announced: 63.3
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: 8751
Total AfriNIC prefixes after maximum aggregation: 2085
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6789
Unique aggregates announced from the AfriNIC address blocks: 2084
AfriNIC Region origin ASes present in the Internet Routing Table: 509
AfriNIC Prefixes per ASN: 13.34
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 119
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: 30852608
Equivalent to 1 /8s, 214 /16s and 198 /24s
Percentage of available AfriNIC address space announced: 46.0
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 1911 11097 664 Korea Telecom (KIX)
7545 1640 303 87 TPG Internet Pty Ltd
17974 1635 503 36 PT Telekomunikasi Indonesia
4755 1510 385 156 TATA Communications formerly
9829 1163 989 28 National Internet Backbone
9583 1118 81 484 Sify Limited
7552 1117 1062 11 Vietel Corporation
24560 1011 384 167 Bharti Airtel Ltd., Telemedia
4808 980 1947 277 CNCGROUP IP network China169
18101 948 131 155 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 3447 3807 202 BellSouth.net Inc.
7029 3257 1042 211 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1868 679 121 PaeTec Communications, Inc.
20115 1629 1556 625 Charter Communications
4323 1607 1078 384 tw telecom holdings, inc.
22773 1486 2909 108 Cox Communications Inc.
30036 1456 257 730 Mediacom Communications Corp
19262 1385 4683 400 Verizon Online LLC
7018 1312 7043 861 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 1644 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
15557 1095 2161 64 NEUF CEGETEL (formerly LDCOM
6830 643 1927 412 UPC Broadband
34984 638 188 171 BILISIM TELEKOM
20940 581 189 464 Akamai Technologies European
8551 577 360 81 Bezeq International
12479 553 639 55 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
31148 536 35 9 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 1723 321 167 Types of queries are: POCs, o
28573 1601 1068 77 Types of queries are: POCs, o
8151 1314 2980 331 Uninet S.A. de C.V.
7303 1254 756 179 Telecom Argentina S.A.
27947 621 73 96 Telconet S.A
22047 581 322 17 Types of queries are: POCs, o
3816 553 238 92 Types of queries are: POCs, o
7738 550 1050 31 Telecomunicacoes da Bahia S.A
11172 532 101 107 Alestra, S. de R.L. de C.V.
6503 528 434 69 Axtel, S.A.B. 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
8452 1030 958 13 TEDATA
24863 794 146 33 LINKdotNET AS number
6713 488 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
33776 230 12 17 Starcomms Nigeria Limited
15706 223 32 6 Sudatel Internet Exchange Aut
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 189 80 8 RAYA Telecom - Egypt
16637 157 664 85 MTN Network Solutions
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 3447 3807 202 BellSouth.net Inc.
7029 3257 1042 211 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1911 11097 664 Korea Telecom (KIX)
1785 1868 679 121 PaeTec Communications, Inc.
10620 1723 321 167 Types of queries are: POCs, o
8402 1644 480 15 Corbina telecom
7545 1640 303 87 TPG Internet Pty Ltd
17974 1635 503 36 PT Telekomunikasi Indonesia
20115 1629 1556 625 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 3257 3046 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1868 1747 PaeTec Communications, Inc.
8402 1644 1629 Corbina telecom
17974 1635 1599 PT Telekomunikasi Indonesia
10620 1723 1556 Types of queries are: POCs, o
7545 1640 1553 TPG Internet Pty Ltd
28573 1601 1524 Types of queries are: POCs, o
22773 1486 1378 Cox Communications Inc.
4755 1510 1354 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
128.0.0.0/21 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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
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 /11:80 /12:233
/13:459 /14:815 /15:1459 /16:12087 /17:6141 /18:10177
/19:20300 /20:27986 /21:28768 /22:38729 /23:36408 /24:202572
/25:11 /26:21 /27:20 /28:154 /29:135 /30:66
/31:0 /32:139
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2863 3257 Windstream Communications Inc
6389 2117 3447 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
8402 1623 1644 Corbina telecom
10620 1618 1723 Types of queries are: POCs, o
30036 1415 1456 Mediacom Communications Corp
11492 1116 1153 CABLE ONE, INC.
1785 1067 1868 PaeTec Communications, Inc.
15557 1046 1095 NEUF CEGETEL (formerly LDCOM
7011 1033 1150 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:500 2:449 4:15 5:1 6:3 8:378
12:1958 13:1 14:582 15:11 16:3 17:6
20:9 23:118 24:1712 27:1145 31:873 32:60
33:2 34:2 36:8 37:102 38:790 40:114
41:2985 42:86 44:3 46:1251 47:3 49:319
50:517 52:13 54:1 55:5 56:3 57:37
58:905 59:484 60:342 61:1077 62:921 63:1973
64:4089 65:2283 66:4398 67:2022 68:1154 69:3143
70:916 71:430 72:1797 74:2655 75:445 76:321
77:964 78:898 79:509 80:1193 81:871 82:568
83:532 84:586 85:1149 86:749 87:909 88:341
89:1545 90:257 91:4459 92:533 93:1547 94:1324
95:1109 96:409 97:297 98:787 99:38 100:18
101:131 103:652 106:9 107:135 108:126 109:1467
110:687 111:835 112:404 113:524 114:603 115:737
116:853 117:708 118:893 119:1235 120:353 121:647
122:1585 123:1026 124:1303 125:1307 128:495 129:183
130:204 131:587 132:154 133:21 134:221 135:58
136:211 137:150 138:289 139:144 140:465 141:259
142:360 143:397 144:507 145:68 146:481 147:225
148:621 149:271 150:158 151:193 152:444 153:170
154:6 155:414 156:207 157:336 158:154 159:434
160:325 161:220 162:337 163:178 164:526 165:395
166:560 167:456 168:847 169:146 170:836 171:107
172:4 173:1771 174:578 175:415 176:370 177:466
178:1208 180:1223 181:43 182:685 183:273 184:397
185:1 186:1504 187:843 188:973 189:1178 190:5340
192:5939 193:5473 194:4207 195:3373 196:1269 197:168
198:3568 199:4294 200:5530 201:1686 202:8185 203:8487
204:4265 205:2412 206:2658 207:2733 208:4002 209:3526
210:2673 211:1446 212:1991 213:1826 214:837 215:94
216:4947 217:1469 218:543 219:336 220:1217 221:542
222:297 223:255
End of report
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