The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Monday, December 9, 2013

[bgp-stats] Routing Table Report - Brisbane view

* BGP Routing Table Analysis Reports *
Routing Table Report 05:00 +10GMT Tue 10 Dec, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/au/

Analysis Summary
----------------

BGP routing table entries examined: 470012
Prefixes after maximum aggregation: 188603
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 235286
Total ASes present in the Internet Routing Table: 45530
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 35461
Origin ASes announcing only one prefix: 16295
Transit ASes present in the Internet Routing Table: 5810
Transit-only ASes present in the Internet Routing Table: 156
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 29
Max AS path prepend of ASN ( 55644) 25
Prefixes from unregistered ASNs in the Routing Table: 1115
Unregistered ASNs in the Routing Table: 302
Number of 32-bit ASNs allocated by the RIRs: 5480
Number of 32-bit ASNs visible in the Routing Table: 4259
Prefixes from 32-bit ASNs in the Routing Table: 13342
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 1352
Number of addresses announced to Internet: 2657473788
Equivalent to 158 /8s, 101 /16s and 212 /24s
Percentage of available address space announced: 71.8
Percentage of allocated address space announced: 71.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 163415

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 110193
Total APNIC prefixes after maximum aggregation: 33480
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 112434
Unique aggregates announced from the APNIC address blocks: 47858
APNIC Region origin ASes present in the Internet Routing Table: 4842
APNIC Prefixes per ASN: 23.22
APNIC Region origin ASes announcing only one prefix: 1223
APNIC Region transit ASes present in the Internet Routing Table: 831
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 777
Number of APNIC addresses announced to Internet: 728887036
Equivalent to 43 /8s, 113 /16s and 238 /24s
Percentage of available APNIC address space announced: 85.2

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
163/8, 171/8, 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: 161976
Total ARIN prefixes after maximum aggregation: 81365
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162734
Unique aggregates announced from the ARIN address blocks: 75728
ARIN Region origin ASes present in the Internet Routing Table: 15891
ARIN Prefixes per ASN: 10.24
ARIN Region origin ASes announcing only one prefix: 6014
ARIN Region transit ASes present in the Internet Routing Table: 1622
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 44
Number of ARIN addresses announced to Internet: 1073091328
Equivalent to 63 /8s, 246 /16s and 19 /24s
Percentage of available ARIN address space announced: 56.8

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 119352
Total RIPE prefixes after maximum aggregation: 61146
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 123255
Unique aggregates announced from the RIPE address blocks: 79118
RIPE Region origin ASes present in the Internet Routing Table: 17525
RIPE Prefixes per ASN: 7.03
RIPE Region origin ASes announcing only one prefix: 8294
RIPE Region transit ASes present in the Internet Routing Table: 2777
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2513
Number of RIPE addresses announced to Internet: 656196608
Equivalent to 39 /8s, 28 /16s and 196 /24s
Percentage of available RIPE address space announced: 95.4

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
59392-61439, 61952-62463, 196608-200191
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52596
Total LACNIC prefixes after maximum aggregation: 9800
LACNIC Deaggregation factor: 5.37
Prefixes being announced from the LACNIC address blocks: 57859
Unique aggregates announced from the LACNIC address blocks: 27450
LACNIC Region origin ASes present in the Internet Routing Table: 2040
LACNIC Prefixes per ASN: 28.36
LACNIC Region origin ASes announcing only one prefix: 555
LACNIC Region transit ASes present in the Internet Routing Table: 385
Average LACNIC Region AS path length visible: 5.5
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 917
Number of LACNIC addresses announced to Internet: 146187008
Equivalent to 8 /8s, 182 /16s and 163 /24s
Percentage of available LACNIC address space announced: 87.1

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11737
Total AfriNIC prefixes after maximum aggregation: 2585
AfriNIC Deaggregation factor: 4.54
Prefixes being announced from the AfriNIC address blocks: 12378
Unique aggregates announced from the AfriNIC address blocks: 4067
AfriNIC Region origin ASes present in the Internet Routing Table: 693
AfriNIC Prefixes per ASN: 17.86
AfriNIC Region origin ASes announcing only one prefix: 209
AfriNIC Region transit ASes present in the Internet Routing Table: 135
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8
Number of AfriNIC addresses announced to Internet: 48652032
Equivalent to 2 /8s, 230 /16s and 95 /24s
Percentage of available AfriNIC address space announced: 48.3

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2723 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2156 11550 652 Korea Telecom (KIX)
7545 2113 319 110 TPG Internet Pty Ltd
4755 1796 392 190 TATA Communications formerly
9829 1544 1248 47 BSNL National Internet Backbo
9583 1329 103 542 Sify Limited
9498 1219 309 72 BHARTI Airtel Ltd.
7552 1171 1080 13 Vietel Corporation
24560 1098 382 166 Bharti Airtel Ltd., Telemedia
4808 1039 1945 304 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3038 3688 53 BellSouth.net Inc.
22773 2302 2939 139 Cox Communications, Inc.
18566 2051 379 178 MegaPath Corporation
1785 2048 686 131 PaeTec Communications, Inc.
20115 1681 1657 596 Charter Communications
4323 1648 1114 419 Time Warner Telecom
701 1504 11144 777 MCI Communications Services,
30036 1371 308 578 Mediacom Communications Corp
7018 1322 17778 861 AT&T WorldNet Services
6983 1292 755 578 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1953 544 16 OJSC "Vimpelcom"
34984 1367 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1182 448 891 Akamai Technologies European
31148 1010 45 20 FreeNet ISP
13188 896 99 42 TOV "Bank-Inform"
6849 854 363 39 JSC UKRTELECOM,
8551 795 370 41 Bezeq International
6830 773 2328 426 UPC Distribution Services
12479 679 798 53 Uni2 Autonomous System
35228 547 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3426 1829 94 NET Servicos de Comunicao S.A
10620 2693 436 200 Telmex Colombia S.A.
7303 1734 1161 230 Telecom Argentina Stet-France
18881 1722 908 20 Global Village Telecom
8151 1354 2852 418 UniNet S.A. de C.V.
11830 868 364 15 Instituto Costarricense de El
27947 825 94 91 Telconet S.A
6147 788 373 27 Telefonica Del Peru
7738 780 1498 36 Telecomunicacoes da Bahia S.A
6503 772 434 61 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 872 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 414 956 9 TEDATA
24835 298 144 9 RAYA Telecom - Egypt
29571 249 21 13 Ci Telecom Autonomous system
3741 247 921 209 The Internet Solution
36992 246 525 29 Etisalat MISR
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3426 1829 94 NET Servicos de Comunicao S.A
6389 3038 3688 53 BellSouth.net Inc.
17974 2723 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2693 436 200 Telmex Colombia S.A.
22773 2302 2939 139 Cox Communications, Inc.
4766 2156 11550 652 Korea Telecom (KIX)
7545 2113 319 110 TPG Internet Pty Ltd
18566 2051 379 178 MegaPath Corporation
1785 2048 686 131 PaeTec Communications, Inc.
8402 1953 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3038 2985 BellSouth.net Inc.
17974 2723 2635 PT TELEKOMUNIKASI INDONESIA
10620 2693 2493 Telmex Colombia S.A.
22773 2302 2163 Cox Communications, Inc.
7545 2113 2003 TPG Internet Pty Ltd
8402 1953 1937 OJSC "Vimpelcom"
1785 2048 1917 PaeTec Communications, Inc.
18566 2051 1873 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
18881 1722 1702 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 4323 Time Warner Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-badAS

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/au/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 /8:16 /9:11 /10:31 /11:92 /12:253
/13:475 /14:937 /15:1643 /16:12864 /17:6782 /18:11181
/19:23110 /20:32913 /21:35664 /22:50055 /23:43788 /24:249975
/25:45 /26:32 /27:48 /28:37 /29:29 /30:31
/31:0 /32:0

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2006 2051 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1700 3038 BellSouth.net Inc.
8402 1659 1953 OJSC "Vimpelcom"
22773 1553 2302 Cox Communications, Inc.
30036 1211 1371 Mediacom Communications Corp
11492 1184 1225 Cable One
1785 1088 2048 PaeTec Communications, Inc.
6983 1034 1292 ITC^Deltacom
22561 965 1241 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/au/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:924 2:864 3:3 4:16 5:815 6:21
8:611 12:1880 13:3 14:879 15:11 16:3
17:19 18:19 20:25 23:612 24:1754 27:1718
31:1519 32:45 33:2 34:5 36:99 37:1943
38:910 39:5 40:181 41:3247 42:229 44:14
46:2058 47:10 49:683 50:861 52:12 54:44
55:5 56:4 57:26 58:1100 59:582 60:367
61:1473 62:1242 63:1973 64:4386 65:2330 66:4149
67:2119 68:1092 69:3286 70:907 71:504 72:2018
74:2578 75:324 76:304 77:1220 78:1018 79:670
80:1284 81:1043 82:631 83:754 84:584 85:1255
86:382 87:1035 88:537 89:1568 90:154 91:5717
92:620 93:1614 94:2116 95:1557 96:517 97:350
98:1092 99:41 100:33 101:446 103:3805 105:531
106:144 107:232 108:536 109:2009 110:970 111:1115
112:576 113:800 114:745 115:1002 116:1017 117:813
118:1221 119:1289 120:367 121:750 122:1839 123:1232
124:1340 125:1467 128:605 129:222 130:339 131:661
132:344 133:158 134:296 135:72 136:275 137:264
138:351 139:168 140:171 141:340 142:538 143:402
144:498 145:90 146:544 147:429 148:726 149:368
150:154 151:486 152:414 153:207 154:46 155:516
156:308 157:367 158:284 159:696 160:361 161:458
162:910 163:205 164:623 165:574 166:276 167:637
168:1036 169:123 170:1128 171:185 172:11 173:1640
174:662 175:533 176:1318 177:2534 178:1875 179:316
180:1610 181:879 182:1411 183:476 184:621 185:1110
186:2645 187:1458 188:1965 189:1257 190:7269 192:7010
193:5471 194:4029 195:3382 196:1327 197:1064 198:4719
199:5477 200:6040 201:2526 202:8904 203:8947 204:4465
205:2628 206:2803 207:2740 208:3959 209:3658 210:2971
211:1604 212:2178 213:1995 214:887 215:84 216:5394
217:1724 218:636 219:313 220:1255 221:587 222:329
223:573

End of report
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